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Text File  |  1995-10-31  |  37KB  |  1,792 lines
  1. ; ***************************************
  2. ; *** INDEX FILE FOR PLANETARY MUSEUM ***
  3. ; ***************************************
  4.  
  5. ;Ablation
  6. [KEYWORD_0]
  7. GlossTopic=idh_ablation
  8. RelatedCount=0
  9.  
  10. ; Adams, John Couch
  11. [KEYWORD_1]
  12. GlossTopic=idh_adams
  13. RelatedCount=1 
  14. Related_1=discovery of Uranus|idh_ch1_p31
  15.  
  16. ;Aldrin,Buzz
  17. [KEYWORD_2]
  18. GlossTopic=idh_aldrin
  19. RelatedCount=3 
  20. Related_1=Apollo astronaut|idh_ch2_p7
  21. Related_2=Apollo mission|idh_ch2_p4
  22. Related_3=surface explorations on Moon|idh_ch2_p26
  23.  
  24. ;ALPHA Regio
  25. [KEYWORD_3]
  26. GlossTopic=idh_alpha
  27. RelatedCount=1
  28. Related_1=description|idh_ch3_p31
  29.  
  30. ;Alsep
  31. [KEYWORD_4]
  32. GlossTopic=idh_alsep
  33. RelatedCount=4
  34. Related_1=Apollo mission|idh_ch2_p4
  35. Related_2=ALSEP activities|idh_ch2_p8
  36. Related_3=lunar surface|idh_ch2_p28
  37. Related_4=moonquakes|idh_ch2_p14
  38.  
  39. ;Alvarez
  40. [KEYWORD_5]
  41. GlossTopic=idh_alvarez
  42. RelatedCount=1
  43. Related_1=Chicxulub discovery|idh_epi_p7
  44.  
  45. ;amalthea
  46. [KEYWORD_6]
  47. GlossTopic=idh_amalthea
  48. RelatedCount=1
  49. Related_1=description|idh_ch5_p6
  50.  
  51. ;antarctic
  52. [KEYWORD_7]
  53. GlossTopic=idh_antarctic
  54. RelatedCount=2
  55. Related_1=description|idh_ch6_p5
  56. Related_2=classification|idh_ch6_p9
  57.  
  58. ;antipodal
  59. [KEYWORD_8]
  60. GlossTopic=idh_antipodal
  61. RelatedCount=0
  62.  
  63. ;aphelion
  64. [KEYWORD_9]
  65. GlossTopic=idh_aphelion
  66. RelatedCount=2
  67. Related_1=illustration|idh_ch6_p16
  68. Related_2=in comet orbits|idh_ch6_p29
  69.  
  70. ;apennines
  71. [KEYWORD_10]
  72. GlossTopic=idh_apennines
  73. RelatedCount=0
  74.  
  75. ;aphrodite
  76. [KEYWORD_11]
  77. GlossTopic=idh_aphrodite
  78. RelatedCount=2
  79. Related_1=description|idh_ch3_p14
  80. Related_2=tectonic activity on|idh_ch3_p31
  81.  
  82. ;apollo
  83. [KEYWORD_12]
  84. GlossTopic=idh_apollo
  85. RelatedCount=4
  86. Related_1=expeditions|idh_ch2_p5
  87. Related_2=scientific value|idh_ch2_p7
  88. Related_3=surface explorations on Moon|idh_ch2_p26
  89. Related_4=termination of program|idh_ch2_p7
  90.  
  91. ;armstrong
  92. [KEYWORD_13]
  93. GlossTopic=idh_armstrong
  94. RelatedCount=3
  95. Related_1=Apollo astronaut|idh_ch2_p7
  96. Related_2=Apollo mission|idh_ch2_p5
  97. Related_3=surface explorations on Moon|idh_ch2_p26
  98.  
  99. ;artemis
  100. [KEYWORD_14]
  101. GlossTopic=idh_artemis
  102. RelatedCount=1
  103. Related_1=description|idh_ch3_p22
  104.  
  105. ;asteroids
  106. [KEYWORD_15]
  107. GlossTopic=idh_asteroid
  108. RelatedCount=7
  109. Related_1=classification|idh_ch6_p13
  110. Related_2=composition|idh_ch6_p13
  111. Related_3=families|idh_ch6_p15
  112. Related_4=largest, Ceres|idh_ch6_p12
  113. Related_5=near-Earth|idh_ch6_p15
  114. Related_6=orbits|idh_ch6_p12
  115. Related_7=Trojan|idh_ch6_p15
  116.  
  117. ;asteroid belt
  118. [KEYWORD_16]
  119. GlossTopic=idh_asteroid_belt
  120. RelatedCount=1
  121. Related_1=description|idh_ch6_p15
  122.  
  123. ;astrology
  124. [KEYWORD_17]
  125. GlossTopic=idh_astrology
  126. RelatedCount=1
  127. Related_1=early|idh_pro_p4
  128.  
  129. ;astronomical unit
  130. [KEYWORD_18]
  131. GlossTopic=idh_astronomical
  132. RelatedCount=1
  133. Related_1=in Kepler's laws|idh_pro_p16
  134.  
  135. ;atmosphere
  136. [KEYWORD_19]
  137. GlossTopic=idh_atmosphere
  138. RelatedCount=13
  139. Related_1=comet|idh_pro_p20
  140. Related_2=Earth|idh_ch3_p34
  141. Related_3=evolution of|idh_ch3_p43
  142. Related_4=Jupiter|idh_ch1_p21
  143. Related_5=Mars|idh_ch4_p33
  144. Related_6=Mercury|idh_ch2_p39
  145. Related_7=Neptune|idh_ch1_p32
  146. Related_8=Pluto|idh_ch5_p37
  147. Related_9=Saturn|idh_ch1_p26
  148. Related_10=Titan|idh_ch5_p34
  149. Related_11=Triton|idh_ch5_p38
  150. Related_12=Uranus|idh_ch6_p34
  151. Related_13=Venus|idh_ch3_p34
  152.  
  153. ;bach
  154. [KEYWORD_20]
  155. GlossTopic=idh_bach
  156. RelatedCount=1
  157. Related_1=and Renaissance innovation|idh_pro_p18
  158.  
  159. ;bar
  160. [KEYWORD_21]
  161. GlossTopic=idh_bar
  162. RelatedCount=1
  163. Related_1=Earth's atmosphere|idh_ch3_p37
  164.  
  165. ;basalt
  166. [KEYWORD_22]
  167. GlossTopic=idh_basalt
  168. RelatedCount=3
  169. Related_1=in lunar lava|idh_ch2_p16
  170. Related_2=on Venus|idh_ch3_p18
  171. Related_3=in meteorites|idh_ch4_p20
  172.  
  173. ;beta regio
  174. [KEYWORD_23]
  175. GlossTopic=idh_beta_regio
  176. RelatedCount=1
  177. Related_1=description|idh_ch3_p20
  178.  
  179. ;big bang
  180. [KEYWORD_24]
  181. GlossTopic=idh_big_bang
  182. RelatedCount=1
  183. Related_1=description|idh_ch1_p2
  184.  
  185. ;blob tectonics
  186. [KEYWORD_25]
  187. GlossTopic=idh_blob_tectonics
  188. RelatedCount=2
  189. Related_1=on Mars|idh_ch4_p19
  190. Related_2=on Venus|idh_ch3_p36
  191.  
  192. ;bradbury
  193. [KEYWORD_26]
  194. GlossTopic=idh_bradbury
  195. RelatedCount=1
  196. Related_1=author|idh_ch4_p51
  197.  
  198. ;brahe
  199. [KEYWORD_27]
  200. GlossTopic=idh_brahe
  201. RelatedCount=1
  202. Related_1=and Johannes Kepler|idh_pro_p13
  203.  
  204. ;brown dwarf
  205. [KEYWORD_28]
  206. GlossTopic=idh_brown_dwarf
  207. RelatedCount=1
  208. Related_1=description|idh_ch1_p19
  209.  
  210. ;calderas
  211. [KEYWORD_29]
  212. GlossTopic=idh_calderas
  213. RelatedCount=1
  214. Related_1=description|idh_ch4_p26
  215.  
  216. ;callisto
  217. [KEYWORD_30]
  218. GlossTopic=idh_callisto
  219. RelatedCount=4
  220. Related_1=composition|idh_ch5_p9
  221. Related_2=density|idh_ch5_p7
  222. Related_3=surface|idh_ch5_p10
  223. Related_4=temperature|idh_ch5_p7
  224.  
  225. ;cambrian
  226. [KEYWORD_31]
  227. GlossTopic=idh_cambrian
  228. RelatedCount=0
  229.  
  230. ;capture theory
  231. [KEYWORD_32]
  232. GlossTopic=idh_capture
  233. RelatedCount=1
  234. Related_1=description|idh_ch2_p45
  235.  
  236. ;carbonaceous chondrites
  237. [KEYWORD_33]
  238. GlossTopic=idh_carbonaceous
  239. RelatedCount=1
  240. Related_1=description|idh_ch6_p18
  241.  
  242. ;carbonaceous comets
  243. [KEYWORD_34]
  244. GlossTopic=idh_carbonaceous
  245. RelatedCount=1
  246. Related_1=description|idh_ch6_p23
  247.  
  248. ;cassini
  249. [KEYWORD_35]
  250. GlossTopic=idh_cassini__jean
  251. RelatedCount=1
  252. Related_1=satellite discoveries|idh_ch5_p4
  253.  
  254. ;cassini program
  255. [KEYWORD_36]
  256. GlossTopic=idh_cassini_program
  257. RelatedCount=1
  258. Related_1=atmospheric probe|idh_ch5_p36
  259.  
  260. ;ceres
  261. [KEYWORD_37]
  262. GlossTopic=idh_ceres
  263. RelatedCount=1
  264. Related_1=description|idh_ch6_p12
  265.  
  266. ;cfcs
  267. [KEYWORD_38]
  268. GlossTopic=idh_cfcs
  269. RelatedCount=2
  270. Related_1=and ozone depletion|idh_ch3_p52
  271. Related_2=future of|idh_epi_p20
  272.  
  273. ;charon
  274. [KEYWORD_39]
  275. GlossTopic=idh_charon
  276. RelatedCount=1
  277. Related_1=description|idh_ch5_p37
  278.  
  279. ;chicxulub crater
  280. [KEYWORD_40]
  281. GlossTopic=idh_chicxulub
  282. RelatedCount=1
  283. Related_1=description|idh_epi_p5
  284.  
  285. ;chondrite
  286. [KEYWORD_41]
  287. GlossTopic=idh_chondrite
  288. RelatedCount=2
  289. Related_1=description|idh_ch6_p7
  290. Related_2=parent bodies|idh_ch6_p10
  291.  
  292. ;chondrule
  293. [KEYWORD_42]
  294. GlossTopic=idh_chondrule
  295. RelatedCount=1
  296. Related_1=description|idh_ch6_p7
  297.  
  298. ;chryse planitia
  299. [KEYWORD_43]
  300. GlossTopic=idh_chryse
  301. RelatedCount=1
  302. Related_1=outflow channels|idh_ch4_p41
  303.  
  304. ;cirrus clouds
  305. [KEYWORD_44]
  306. GlossTopic=idh_cirrus
  307. RelatedCount=1
  308. Related_1=on Jupiter|idh_ch1_p23
  309.  
  310. ;comet biela
  311. [KEYWORD_45]
  312. GlossTopic=idh_comet_biela
  313. RelatedCount=1
  314. Related_1=description|idh_ch6_p27
  315.  
  316. ;comet halley
  317. [KEYWORD_46]
  318. GlossTopic=idh_comet_halley
  319. RelatedCount=1
  320. Related_1=description|idh_ch6_p21
  321.  
  322. ;comet swift-tuttle
  323. [KEYWORD_47]
  324. GlossTopic=idh_comet_swift_tutle
  325. RelatedCount=1
  326. Related_1=description|idh_ch6_p27
  327.  
  328. ;comets
  329. [KEYWORD_48]
  330. GlossTopic=idh_comet
  331. RelatedCount=5
  332. Related_1=and meteors|idh_ch6_p26
  333. Related_2=appearance|idh_ch6_p20
  334. Related_3=nucleus|idh_ch6_p22
  335. Related_4=orbits|idh_ch6_p21
  336. Related_5=origin|idh_ch6_p29
  337.  
  338. ;conic section
  339. [KEYWORD_49]
  340. GlossTopic=idh_conic_section
  341. RelatedCount=2
  342. Related_1=description|idh_pro_p14
  343. Related_2=illustration|idh_pro_p14
  344.  
  345. ;constellation
  346. [KEYWORD_50]
  347. GlossTopic=idh_constellation
  348. RelatedCount=1
  349. Related_1=in ancient times|idh_pro_p2
  350.  
  351. ;continental drift
  352. [KEYWORD_51]
  353. GlossTopic=idh_continental_drift
  354. RelatedCount=1
  355. Related_1=description|idh_ch3_p26
  356.  
  357. ;convection
  358. [KEYWORD_52]
  359. GlossTopic=idh_convection_currents
  360. RelatedCount=2
  361. Related_1=on Jupiter|idh_ch1_p23
  362. Related_2=on Neptune|idh_ch1_p32
  363.  
  364. ;copernicus crater
  365. [KEYWORD_53]
  366. GlossTopic=idh_copernicus_crater
  367. RelatedCount=1
  368. Related_1=description|idh_ch2_p20
  369.  
  370. ;copernicus-nicolas
  371. [KEYWORD_54]
  372. GlossTopic=idh_dh_copernicus__nicolas
  373. RelatedCount=1
  374. Related_1=theory of solar system|idh_pro_p8
  375.  
  376. ;coronae
  377. [KEYWORD_55]
  378. GlossTopic=idh_coronae
  379. RelatedCount=2
  380. Related_1=description|idh_ch3_p22
  381. Related_2=illustration|idh_ch3_p22
  382.  
  383. ;cosmology
  384. [KEYWORD_56]
  385. GlossTopic=idh_cosmology
  386. RelatedCount=1
  387. Related_1=description|idh_pro_p4
  388.  
  389. ;craters
  390. [KEYWORD_57]
  391. GlossTopic=idh_crater
  392. RelatedCount=7
  393. Related_1=Chicxulub Crater|idh_epi_p5
  394. Related_2=largest|idh_ch3_p17
  395. Related_3=on Callisto|idh_ch5_p10
  396. Related_4=on Mars|idh_ch4_p16
  397. Related_5=on Moon|idh_ch2_p11
  398. Related_6=Meteor Crater|idh_ch2_p21
  399. Related_7=Tycho Crater|idh_ch2_p20
  400.  
  401. ;cretaceous period
  402. [KEYWORD_58]
  403. GlossTopic=idh_cretaceous
  404. RelatedCount=1
  405. Related_1=role in astronomical history|idh_epi_p7
  406.  
  407. ;cryo-volcanism
  408. [KEYWORD_59]
  409. GlossTopic=idh_cryo_volcanism
  410. RelatedCount=1
  411. Related_1=on Triton|idh_ch5_p38
  412.  
  413. ;darwin
  414. [KEYWORD_60]
  415. GlossTopic=idh_darwin
  416. RelatedCount=1
  417. Related_1=description|idh_ch2_p44
  418.  
  419. ;deccan plateau
  420. [KEYWORD_61]
  421. GlossTopic=idh_deccan
  422. RelatedCount=1
  423. Related_1=volcanism|idh_ch3_p18
  424.  
  425. ;deimos
  426. [KEYWORD_62]
  427. GlossTopic=idh_deimos
  428. RelatedCount=1
  429. Related_1=satellite|idh_ch6_p18
  430.  
  431. ;dinosaurs
  432. [KEYWORD_63]
  433. GlossTopic=idh_dinosaurs
  434. RelatedCount=1
  435. Related_1=description|idh_epi_p4
  436.  
  437. ;dna
  438. [KEYWORD_64]
  439. GlossTopic=idh_dna
  440. RelatedCount=2
  441. Related_1=basis of life|idh_ch4_p47
  442. Related_2=component on Titan|idh_ch5_p35
  443.  
  444. ;e.coli
  445. [KEYWORD_65]
  446. GlossTopic=idh_e__coli
  447. RelatedCount=1
  448. Related_1=smaller life forms|idh_ch4_p47
  449.  
  450. ;earth
  451. [KEYWORD_66]
  452. GlossTopic=idh_earth
  453. RelatedCount=15
  454. Related_1=and Venus|idh_ch3_p1
  455. Related_2=atmosphere|idh_ch3_p34
  456. Related_3=climate|idh_ch3_p35
  457. Related_4=composition|idh_ch3_p10
  458. Related_5=craters|idh_ch3_p17
  459. Related_6=geology|idh_ch3_p13
  460. Related_7=giant impact|idh_ch2_p48
  461. Related_8=global warming|idh_ch3_p50
  462. Related_9=impact consequences|idh_epi_p1
  463. Related_10=life|idh_ch3_p46
  464. Related_11=magnetic field|idh_ch3_p11
  465. Related_12=illustration|idh_ch3_p12
  466. Related_13=origin|idh_ch3_p43
  467. Related_14=plate tectonics|idh_ch3_p23
  468. Related_15=volcanism|idh_ch3_p18
  469.  
  470. ;earthquakes
  471. [KEYWORD_67]
  472. GlossTopic=idh_earthquake
  473. RelatedCount=2
  474. Related_1=description|idh_ch3_p29
  475. Related_2=subduction|idh_ch3_p28
  476.  
  477. ;electromagnetic Radiation
  478. [KEYWORD_68]
  479. GlossTopic=idh_electromagnetic_radiation
  480. RelatedCount=0
  481.  
  482. ;electro spectrum
  483. [KEYWORD_69]
  484. GlossTopic=idh_electromagnetic_spectrum
  485. RelatedCount=1
  486. Related_1=illustration|idh_ch1_p11
  487.  
  488. ;ellipse
  489. [KEYWORD_70]
  490. GlossTopic=idh_ellipse
  491. RelatedCount=2
  492. Related_1=description|idh_pro_p16
  493. Related_2=illustration|idh_pro_p15
  494.  
  495. ;enceladus
  496. [KEYWORD_71]
  497. GlossTopic=idh_enceladus
  498. RelatedCount=2
  499. Related_1=description|idh_ch5_p13
  500. Related_2=water volcanism|idh_ch5_p15
  501.  
  502. ;eucrite meteor
  503. [KEYWORD_72]
  504. GlossTopic=idh_eucrites
  505. RelatedCount=1
  506. Related_1=description|idh_ch6_p14
  507.  
  508. ;europa
  509. [KEYWORD_73]
  510. GlossTopic=idh_europa
  511. RelatedCount=3
  512. Related_1=composition|idh_ch5_p12
  513. Related_2=density|idh_ch5_p7
  514. Related_3=orbit|idh_ch5_p7
  515.  
  516. ;european Renaissance
  517. [KEYWORD_74]
  518. GlossTopic=idh_european_renaissance
  519. RelatedCount=0
  520.  
  521. ;european space agency
  522. [KEYWORD_75]
  523. GlossTopic=idh_european_space_agency
  524. RelatedCount=1
  525. Related_1=Cassini mission|idh_ch1_p10
  526.  
  527. ;F ring
  528. [KEYWORD_76]
  529. GlossTopic=idh_f_ring
  530. RelatedCount=2
  531. Related_1=description|idh_ch5_p18
  532. Related_2=illustration|idh_ch5_p28
  533.  
  534. ;face on mars
  535. [KEYWORD_77]
  536. GlossTopic=idh_face_on_mars
  537. RelatedCount=1
  538. Related_1=description|idh_ch4_p1
  539.  
  540. ;fractionation
  541. [KEYWORD_78]
  542. GlossTopic=idh_fractionation
  543. RelatedCount=1
  544. Related_1=description|idh_ch1_p13
  545.  
  546. ;fuji volcano
  547. [KEYWORD_79]
  548. GlossTopic=idh_fuji_volcano
  549. RelatedCount=1
  550. Related_1=description|idh_ch3_p19
  551.  
  552. ;galaxy
  553. [KEYWORD_80]
  554. GlossTopic=idh_galaxy
  555. RelatedCount=1
  556. Related_1=description|idh_ch6_p35
  557.  
  558. ;galilean satellites
  559. [KEYWORD_81]
  560. GlossTopic=idh_galilean_satellites
  561. RelatedCount=2
  562. Related_1=discovery|idh_ch5_p2
  563. Related_2=naming|idh_ch5_p3
  564.  
  565. ;galileo
  566. [KEYWORD_82]
  567. GlossTopic=idh_galileo_galilei
  568. RelatedCount=2
  569. Related_1=discovers jovian satellites|idh_ch5_p2
  570. Related_2=introduction|idh_pro_p10
  571.  
  572. ;galileo program
  573. [KEYWORD_83]
  574. GlossTopic=idh_galileo_program
  575. RelatedCount=1
  576. Related_1=Gaspra flyby|idh_ch6_p16
  577.  
  578. ;galle
  579. [KEYWORD_84]
  580. GlossTopic=idh_galle
  581. RelatedCount=1
  582. Related_1=introduction|idh_ch1_p31
  583.  
  584. ;ganymede
  585. [KEYWORD_85]
  586. GlossTopic=idh_ganymede
  587. RelatedCount=5
  588. Related_1=composition|idh_ch5_p9
  589. Related_2=density|idh_ch5_p7
  590. Related_3=size|idh_ch5_p7
  591. Related_4=surface|idh_ch5_p11
  592. Related_5=temperature|idh_ch5_p8
  593.  
  594. ;gaspra
  595. [KEYWORD_86]
  596. GlossTopic=idh_gaspra
  597. RelatedCount=2
  598. Related_1=description|idh_ch6_p16
  599. Related_2=illustration|idh_ch6_p16
  600.  
  601. ;geocentric
  602. [KEYWORD_87]
  603. GlossTopic=idh_geocentric
  604. RelatedCount=1
  605. Related_1=Ptolemaic system|idh_pro_p9
  606.  
  607. ;georgium
  608. [KEYWORD_88]
  609. GlossTopic=idh_georgium
  610. RelatedCount=1
  611. Related_1=naming of Uranus|idh_ch1_p27
  612.  
  613. ;geyser
  614. [KEYWORD_89]
  615. GlossTopic=idh_geyser
  616. RelatedCount=1
  617. Related_1=description|idh_ch6_p24
  618.  
  619. ;gilbert
  620. [KEYWORD_90]
  621. GlossTopic=idh_gilbert
  622. RelatedCount=1
  623. Related_1=U. S. Geological Survey|idh_ch2_p18
  624.  
  625. ;giotto
  626. [KEYWORD_91]
  627. GlossTopic=idh_giotto
  628. RelatedCount=1
  629. Related_1=exploring Comet Halley|idh_ch6_p23
  630.  
  631. ;global warming
  632. [KEYWORD_92]
  633. GlossTopic=idh_global_warming
  634. RelatedCount=1
  635. Related_1=description|idh_ch3_p50
  636.  
  637. ;grand canyon
  638. [KEYWORD_93]
  639. GlossTopic=idh_grand_canyon
  640. RelatedCount=1
  641. Related_1=description|idh_ch4_p31
  642.  
  643. ;grand coulee
  644. [KEYWORD_94]
  645. GlossTopic=idh_grand_coulee
  646. RelatedCount=1
  647. Related_1=description|idh_ch4_p42
  648.  
  649. ;gravitation
  650. [KEYWORD_95]
  651. GlossTopic=idh_gravitation
  652. RelatedCount=3
  653. Related_1=early history|idh_ch2_p25
  654. Related_2=Newton's laws|idh_pro_p18
  655. Related_3=volcanoes|idh_ch4_p29
  656.  
  657. ;great dark spot
  658. [KEYWORD_96]
  659. GlossTopic=idh_great_dark_spot
  660. RelatedCount=1
  661. Related_1=description|idh_ch1_p33
  662.  
  663. ;greenhouse effect
  664. [KEYWORD_97]
  665. GlossTopic=idh_greenhouse_effect
  666. RelatedCount=5
  667. Related_1=changes|idh_ch3_p49
  668. Related_2=explanation|idh_ch3_p39
  669. Related_3=on Earth|idh_ch3_p42
  670. Related_4=on Mars|idh_ch4_p44
  671. Related_5=on Venus|idh_ch3_p44
  672.  
  673. ;gula mons
  674. [KEYWORD_98]
  675. GlossTopic=idh_gula_mons
  676. RelatedCount=2
  677. Related_1=description|idh_ch3_p20
  678. Related_2=illlustration|idh_ch3_p20
  679.  
  680. ;halleys comet
  681. [KEYWORD_99]
  682. GlossTopic=idh_halley
  683. RelatedCount=0
  684.  
  685. ;hawaii volcanos
  686. [KEYWORD_100]
  687. GlossTopic=idh_hawaii_volcanoes
  688. RelatedCount=1
  689. Related_1=description|idh_ch3_p20
  690.  
  691. ;heliocentric
  692. [KEYWORD_101]
  693. GlossTopic=idh_heliocentric
  694. RelatedCount=1
  695. Related_1=Copernican theory|idh_pro_p9
  696.  
  697. ;herschel
  698. [KEYWORD_102]
  699. GlossTopic=idh_herschel
  700. RelatedCount=3
  701. Related_1=description|idh_ch1_p27
  702. Related_2=Georgium Sidus|idh_ch1_p27
  703. Related_3=satellite discoveries|idh_ch5_p4
  704.  
  705. ;highlands
  706. [KEYWORD_103]
  707. GlossTopic=idh_highlands
  708. RelatedCount=0
  709.  
  710. ;hildr channel
  711. [KEYWORD_104]
  712. GlossTopic=idh_hildr_channel
  713. RelatedCount=1
  714. Related_1=description|idh_ch3_p21
  715.  
  716. ;himalayan mt
  717. [KEYWORD_105]
  718. GlossTopic=idh_himalayan
  719. RelatedCount=2
  720. Related_1=similarity to Venus|idh_ch3_p32
  721. Related_2=subduction|idh_ch3_p28
  722.  
  723. ;huygens
  724. [KEYWORD_106]
  725. GlossTopic=idh_huygens
  726. RelatedCount=2
  727. Related_1=introduction|idh_ch5_p4
  728. Related_2=Titan discovery|idh_ch5_p34
  729.  
  730. ;hydrogen chem
  731. [KEYWORD_107]
  732. GlossTopic=idh_hydrogen
  733. RelatedCount=1
  734. Related_1=explanation|idh_ch1_p15
  735.  
  736. ;iapetus
  737. [KEYWORD_108]
  738. GlossTopic=idh_iapetus
  739. RelatedCount=1
  740. Related_1=description|idh_ch5_p13
  741.  
  742. ;igneous rock
  743. [KEYWORD_109]
  744. GlossTopic=idh_igneous
  745. RelatedCount=3
  746. Related_1=eucrite meteorites|idh_ch6_p14
  747. Related_2=in Earth's crust|idh_ch3_p13
  748. Related_3=meteorites, general|idh_ch6_p11
  749.  
  750. ;imbrium basin
  751. [KEYWORD_110]
  752. GlossTopic=idh_imbrium
  753. RelatedCount=1
  754. Related_1=description|idh_ch2_p15
  755.  
  756. ;impact hazard
  757. [KEYWORD_111]
  758. GlossTopic=idh_impact_hazard
  759. RelatedCount=1
  760. Related_1=description|idh_epi_p10
  761.  
  762. ;iras
  763. [KEYWORD_112]
  764. GlossTopic=idh_infrared_astronomy
  765. RelatedCount=1
  766. Related_1=search for the last planet|idh_ch5_p41
  767.  
  768. ;infrared heat
  769. [KEYWORD_113]
  770. GlossTopic=idh_infrared_heat
  771. RelatedCount=4
  772. Related_1=asteroid properties|idh_ch6_p13
  773. Related_2=galaxy searches|idh_ch6_p35
  774. Related_3=greenhouse effect|idh_ch3_p39
  775. Related_4=Jupiter's atmosphere|idh_ch1_p21
  776.  
  777. ;interplanetary dust
  778. [KEYWORD_114]
  779. GlossTopic=idh_interplanetary_dust
  780. RelatedCount=1
  781. Related_1=description|idh_ch6_p27
  782.  
  783. ;io
  784. [KEYWORD_115]
  785. GlossTopic=idh_io
  786. RelatedCount=4
  787. Related_1=description|idh_ch5_p12
  788. Related_2=discovery|idh_ch5_p2
  789. Related_3=temperature|idh_ch5_p32
  790. Related_4=volcanism|idh_ch5_p29
  791.  
  792. ;ishtar
  793. [KEYWORD_116]
  794. GlossTopic=idh_ishtar_terra
  795. RelatedCount=1
  796. Related_1=description|idh_ch3_p14
  797.  
  798. ;isotopes
  799. [KEYWORD_117]
  800. GlossTopic=idh_isotopes
  801. RelatedCount=2
  802. Related_1=on Earth, Moon|idh_ch2_p42
  803. Related_2=Viking tests|idh_ch4_p48
  804.  
  805. ;jefferson
  806. [KEYWORD_118]
  807. GlossTopic=idh_jefferson
  808. RelatedCount=1
  809. Related_1=meteorite skepticist|idh_ch6_p3
  810.  
  811. ;jupiter
  812. [KEYWORD_119]
  813. GlossTopic=idh_jupiter
  814. RelatedCount=8
  815. Related_1=appearance|idh_ch1_p18
  816. Related_2=atmosphere|idh_ch1_p21
  817. Related_3=composition|idh_ch1_p19
  818. Related_4=galilean satellites|idh_ch5_p7
  819. Related_5=Galileo Galilei|idh_ch1_p10
  820. Related_6=magnetic field|idh_ch1_p18
  821. Related_7=rings|idh_ch5_p23
  822. Related_8=Voyager|idh_ch1_p8
  823.  
  824. ;kelvin
  825. [KEYWORD_120]
  826. GlossTopic=idh_kelvin
  827. RelatedCount=1
  828. Related_1=Kelvin degrees|idh_ch1_p20
  829.  
  830. ;kepler
  831. [KEYWORD_121]
  832. GlossTopic=idh_kepler
  833. RelatedCount=3
  834. Related_1=introduction|idh_pro_p12
  835. Related_2=laws of planetary motion|idh_pro_p14
  836. Related_3=Newton's laws|idh_pro_p18
  837.  
  838. ;keplers law
  839. [KEYWORD_122]
  840. GlossTopic=idh_kepler_s_law
  841. RelatedCount=1
  842. Related_1=description|idh_pro_p14
  843.  
  844. ;lakshmi
  845. [KEYWORD_123]
  846. GlossTopic=idh_lakshmi
  847. RelatedCount=1
  848. Related_1=description|idh_ch3_p32
  849.  
  850. ;leverrier
  851. [KEYWORD_124]
  852. GlossTopic=idh_leverrier
  853. RelatedCount=1
  854. Related_1=Uranus discovery|idh_ch1_p30
  855.  
  856. ;light pollution
  857. [KEYWORD_125]
  858. GlossTopic=idh_light_pollution
  859. RelatedCount=1
  860. Related_1=and comet viewing|idh_ch6_p20
  861.  
  862. ;loki volcano
  863. [KEYWORD_126]
  864. GlossTopic=idh_loki
  865. RelatedCount=1
  866. Related_1=description|idh_ch5_p31
  867.  
  868. ;lunar highlands
  869. [KEYWORD_127]
  870. GlossTopic=idh_lunar_highlands
  871. RelatedCount=4
  872. Related_1=aging|idh_ch2_p14
  873. Related_2=craters on|idh_ch2_p24
  874. Related_3=introduction|idh_ch2_p11
  875. Related_4=surface|idh_ch2_p12
  876.  
  877. ;lunar maria
  878. [KEYWORD_128]
  879. GlossTopic=idh_lunar_maria
  880. RelatedCount=3
  881. Related_1=craters|idh_ch2_p23
  882. Related_2=introduction|idh_ch2_p11
  883. Related_3=surface|idh_ch2_p13
  884.  
  885. ;luther 
  886. [KEYWORD_129]
  887. GlossTopic=idh_luther
  888. RelatedCount=1
  889. Related_1=historical context|idh_ch1_p3
  890.  
  891. ;lowell
  892. [KEYWORD_130]
  893. GlossTopic=idh_lowell
  894. RelatedCount=2
  895. Related_1=Mars studies|idh_ch4_p3
  896. Related_2=mentor of Clyde Tombaugh|idh_ch5_p40
  897.  
  898. ;maat mons
  899. [KEYWORD_131]
  900. GlossTopic=idh_maat_mons
  901. RelatedCount=1
  902. Related_1=description|idh_ch3_p20
  903.  
  904. ;magellan Program
  905. [KEYWORD_132]
  906. GlossTopic=idh_magellan
  907. RelatedCount=2
  908. Related_1=mission|idh_ch3_p8
  909. Related_2=radar discovery|idh_ch3_p15
  910.  
  911. ;magnetic Field
  912. [KEYWORD_133]
  913. GlossTopic=idh_magnetic_field
  914. RelatedCount=4
  915. Related_1=Earth and Venus|idh_ch3_p12
  916. Related_2=Jupiter|idh_ch1_p35
  917. Related_3=Mars|idh_ch4_p21
  918. Related_4=Saturn|idh_ch1_p36
  919.  
  920. ;magnetosphere
  921. [KEYWORD_134]
  922. GlossTopic=idh_magnetosphere
  923. RelatedCount=2
  924. Related_1=Jupiter|idh_ch1_p37
  925. Related_2=other planets|idh_ch1_p38
  926.  
  927. ;mariner program
  928. [KEYWORD_135]
  929. GlossTopic=idh_mariner
  930. RelatedCount=5
  931. Related_1=Mariner 2|idh_ch3_p6
  932. Related_2=Mariner 4|idh_ch4_p6
  933. Related_3=Mariner 9|idh_ch4_p7
  934. Related_4=Mariner 9 climate discovery|idh_ch4_p40
  935. Related_5=Mariner 10|idh_ch2_p35
  936.  
  937. ;marius,simon
  938. [KEYWORD_136]
  939. GlossTopic=idh_marius
  940. RelatedCount=1
  941. Related_1=naming the galilean satellites|idh_ch5_p3
  942.  
  943. ;mars
  944. [KEYWORD_137]
  945. GlossTopic=idh_mars
  946. RelatedCount=17
  947. Related_1=atmosphere|idh_ch4_p33
  948. Related_2=changes|idh_ch4_p43
  949. Related_3=channels|idh_ch4_-40
  950. Related_4=climate|idh_ch4_p4
  951. Related_5=future habitation possibility|idh_ch4_p50
  952. Related_6=geology|idh_ch4_p15
  953. Related_7=introduction|idh_ch4_p1
  954. Related_8=Mariner exploration|idh_ch4_p6
  955. Related_9=Olympus Mons|idh_ch4_p27
  956. Related_10=polar caps|idh_ch4_p37
  957. Related_11=satellites|idh_ch6_p18
  958. Related_12=search for life|idh_ch4_p46
  959. Related_13=surface|idh_ch4_p23
  960. Related_14=terrain|idh_ch4_p17
  961. Related_15=Tharsis|idh_ch4_p18
  962. Related_16=Viking exploration|idh_ch4_p9
  963. Related_17=volcanism|idh_ch4_p26
  964.  
  965. ;masursky
  966. [KEYWORD_138]
  967. GlossTopic=idh_masursky
  968. RelatedCount=1
  969. Related_1=Viking scientist|idh_ch4_p26
  970.  
  971. ;mauna kea
  972. [KEYWORD_139]
  973. GlossTopic=idh_mauna_kea
  974. RelatedCount=1
  975. Related_1=description|idh_ch3_p20
  976.  
  977. ;mauna loa
  978. [KEYWORD_140]
  979. GlossTopic=idh_mauna_loa
  980. RelatedCount=1
  981. Related_1=description|idh_ch3_p20
  982.  
  983. ;maxwell mt
  984. [KEYWORD_141]
  985. GlossTopic=idh_maxwell
  986. RelatedCount=1
  987. Related_1=description|idh_ch3_p32
  988.  
  989. ;mead crater
  990. [KEYWORD_142]
  991. GlossTopic=idh_mead
  992. RelatedCount=1
  993. Related_1=description|idh_ch3_p17
  994.  
  995. ;mercury
  996. [KEYWORD_143]
  997. GlossTopic=idh_mercury
  998. RelatedCount=6
  999. Related_1=climate|idh_ch1_34
  1000. Related_2=craters|idh_ch1_p36
  1001. Related_3=density|idh_ch1_p32
  1002. Related_4=exploration|idh_ch1_p35
  1003. Related_5=introduction|idh_ch1_p31
  1004. Related_6=origin|idh_ch2_p50
  1005.  
  1006. ;meteor crater
  1007. [KEYWORD_144]
  1008. GlossTopic=idh_meteor_crater
  1009. RelatedCount=1
  1010. Related_1=description|idh_ch2_p21
  1011.  
  1012. ;meteor shower
  1013. [KEYWORD_145]
  1014. GlossTopic=idh_meteor_shower
  1015. RelatedCount=1
  1016. Related_1=description|idh_ch6_p26
  1017.  
  1018. ;meteorites
  1019. [KEYWORD_146]
  1020. GlossTopic=idh_meteorites
  1021. RelatedCount=6
  1022. Related_1=Antarctic|idh_ch6_p5
  1023. Related_2=carbonaceous|idh_ch6_p8
  1024. Related_3=classification|idh_ch6_p7
  1025. Related_4=igneous|idh_ch6_p11
  1026. Related_5=introduction|idh_ch6_p3
  1027. Related_6=parent bodies|idh_ch6_p9
  1028.  
  1029. ;meteroids
  1030. [KEYWORD_147]
  1031. GlossTopic=idh_meteoroids
  1032. RelatedCount=0
  1033.  
  1034. ;meteors
  1035. [KEYWORD_148]
  1036. GlossTopic=idh_meteors
  1037. RelatedCount=1
  1038. Related_1=description|idh_ch6_p26
  1039.  
  1040. ;michelangelo
  1041. [KEYWORD_149]
  1042. GlossTopic=idh_michelangelo
  1043. RelatedCount=1
  1044. Related_1=description|idh_pro_p9
  1045.  
  1046. ;microscope
  1047. [KEYWORD_150]
  1048. GlossTopic=idh_microscope
  1049. RelatedCount=1
  1050. Related_1=description|idh_ch2_p27
  1051.  
  1052. ;milky way
  1053. [KEYWORD_151]
  1054. GlossTopic=idh_milky_way
  1055. RelatedCount=1
  1056. Related_1=description|idh_pro_p2
  1057.  
  1058. ;moon
  1059. [KEYWORD_152]
  1060. GlossTopic=idh_moon
  1061. RelatedCount=14
  1062. Related_1=Apollo exploration|idh_ch2_p5
  1063. Related_2=composition|idh_ch2_p3
  1064. Related_3=craters|idh_ch2_p11
  1065. Related_4=crater origins|idh_ch2_p18
  1066. Related_5=eruptions|idh_ch2_p16
  1067. Related_6=highlands|idh_ch2_p11
  1068. Related_7=history|idh_ch2_p14
  1069. Related_8=introduction|idh_ch2_p1
  1070. Related_9=maria|idh_ch2_p11
  1071. Related_10=Moon National Monument|idh_ch2_p28
  1072. Related_11=origin theories|idh_ch2_p41
  1073. Related_12=surface appearance|idh_ch2_p10
  1074. Related_13=surface properties|idh_ch2_p26
  1075. Related_14=temperature|idh_ch2_p28
  1076.  
  1077. ;moon national monument
  1078. [KEYWORD_153]
  1079. GlossTopic=idh_moon_national_monument
  1080. RelatedCount=1
  1081. Related_1=description|idh_ch2_p28
  1082.  
  1083. ;mt everest
  1084. [KEYWORD_154]
  1085. GlossTopic=idh_mt__everest
  1086. RelatedCount=1
  1087. Related_1=description|idh_ch3_p14
  1088.  
  1089. ;nasa
  1090. [KEYWORD_155]
  1091. GlossTopic=idh_nasa
  1092. RelatedCount=0
  1093.  
  1094. ;nea
  1095. [KEYWORD_156]
  1096. GlossTopic=idh_near_earth_asteroid
  1097. RelatedCount=2
  1098. Related_1=description|idh_epi_p15
  1099. Related_2=debate on intercepting|idh_epi_p18
  1100.  
  1101. ;nebula
  1102. [KEYWORD_157]
  1103. GlossTopic=idh_nebula
  1104. RelatedCount=2
  1105. Related_1=Jupiter|idh_ch5_p8
  1106. Related_2=source of comets, asteroids|idh_ch6_p1
  1107.  
  1108. ;neptune
  1109. [KEYWORD_158]
  1110. GlossTopic=idh_neptune
  1111. RelatedCount=8
  1112. Related_1=appearance|idh_ch1_p32
  1113. Related_2=discovery|idh_ch1_p30
  1114. Related_3=exploration|idh_ch1_p8
  1115. Related_4=Great Dark Spot|idh_ch1_p33
  1116. Related_5=rings|idh_ch5_p20
  1117. Related_6=ring structures|idh_ch5_p23
  1118. Related_7=satellites|idh_ch5_p19
  1119. Related_8=weather|idh_ch1_p33
  1120.  
  1121. ;newton
  1122. [KEYWORD_159]
  1123. GlossTopic=idh_newton
  1124. RelatedCount=1
  1125. Related_1=introduction|idh_pro_p18
  1126.  
  1127. ;newtons law
  1128. [KEYWORD_160]
  1129. GlossTopic=idh_newton_s_laws
  1130. RelatedCount=1
  1131. Related_1=description|idh_pro_p19
  1132.  
  1133. ;nicholson
  1134. [KEYWORD_161]
  1135. GlossTopic=idh_nicholson
  1136. RelatedCount=1
  1137. Related_1=astronomer|idh_ch5_p4
  1138.  
  1139. ;olympus mons
  1140. [KEYWORD_162]
  1141. GlossTopic=idh_olympus_mons
  1142. RelatedCount=3
  1143. Related_1=description|idh_ch4_p27
  1144. Related_2=name origin|idh_ch4_p33
  1145. Related_3=illustration|idh_ch4_p28
  1146.  
  1147. ;oort
  1148. [KEYWORD_163]
  1149. GlossTopic=idh_oort
  1150. RelatedCount=1
  1151. Related_1=astronomer|idh_ch6_p29
  1152.  
  1153. ;oort comet cloud
  1154. [KEYWORD_164]
  1155. GlossTopic=idh_oort_comet_cloud
  1156. RelatedCount=1
  1157. Related_1=description|idh_ch6_p29
  1158.  
  1159. ;orientale basin
  1160. [KEYWORD_165]
  1161. GlossTopic=idh_orientale_basin
  1162. RelatedCount=1
  1163. Related_1=description|idh_ch2_p15
  1164.  
  1165. ;orion
  1166. [KEYWORD_166]
  1167. GlossTopic=idh_orion
  1168. RelatedCount=1
  1169. Related_1=description|idh_pro_p3
  1170.  
  1171. ;oxygen chemistry
  1172. [KEYWORD_167]
  1173. GlossTopic=idh_oxygen
  1174. RelatedCount=1
  1175. Related_1=description|idh_ch3_p10
  1176.  
  1177. ;ozone
  1178. [KEYWORD_168]
  1179. GlossTopic=idh_ozone
  1180. RelatedCount=2
  1181. Related_1=depletion|idh_epi_p9
  1182. Related_2=function on Earth|idh_ch3_p46
  1183.  
  1184. ;pancake domes
  1185. [KEYWORD_169]
  1186. GlossTopic=idh_pancake
  1187. RelatedCount=1
  1188. Related_1=description|idh_ch3_p21
  1189.  
  1190. ;pandora
  1191. [KEYWORD_170]
  1192. GlossTopic=idh_pandora
  1193. RelatedCount=2
  1194. Related_1=shephered satellite|idh_ch5_p27
  1195. Related_2=illustration|idh_ch2_p28
  1196.  
  1197. ;perseid meteor shower
  1198. [KEYWORD_171]
  1199. GlossTopic=idh_n1_perseid
  1200. RelatedCount=1
  1201. Related_1=description|idh_ch6_p27
  1202.  
  1203. ;peter the great
  1204. [KEYWORD_172]
  1205. GlossTopic=idh_peter_the_great
  1206. RelatedCount=1
  1207. Related_1=historical context|idh_pro_p18
  1208.  
  1209. ;phobos
  1210. [KEYWORD_173]
  1211. GlossTopic=idh_phobos
  1212. RelatedCount=2
  1213. Related_1=description|idh_ch6_p18
  1214. Related_2=discovery|idh_ch5_p4
  1215.  
  1216. ;photosynthesis
  1217. [KEYWORD_174]
  1218. GlossTopic=idh_photosynthesis
  1219. RelatedCount=2
  1220. Related_1=effect of Chicxulub impact|idh_epi_p6
  1221. Related_2=on Earth|idh_ch3_p46
  1222.  
  1223. ;pinatubo volcano
  1224. [KEYWORD_175]
  1225. GlossTopic=idh_pinatubo
  1226. RelatedCount=1
  1227. Related_1=description|idh_ch3_p19
  1228.  
  1229. ;pioneer program
  1230. [KEYWORD_176]
  1231. GlossTopic=idh_pioneer_program
  1232. RelatedCount=2
  1233. Related_1=Pioneer 10|idh_ch1_p3
  1234. Related_2=Venus|idh_ch3_p6
  1235.  
  1236. ;planet X
  1237. [KEYWORD_177]
  1238. GlossTopic=idh_planet_x
  1239. RelatedCount=1
  1240. Related_1=description|idh_ch5_p40
  1241.  
  1242. ;planetesimal
  1243. [KEYWORD_178]
  1244. GlossTopic=idh_planetesimal
  1245. RelatedCount=2
  1246. Related_1=introduction|idh_ch3_p43
  1247. Related_2=origin|idh_ch6_p32
  1248.  
  1249. ;plate tectonics
  1250. [KEYWORD_179]
  1251. GlossTopic=idh_plate_tectonics
  1252. RelatedCount=4
  1253. Related_1=effects|idh_ch3_p28
  1254. Related_2=introduction|idh_ch3_p24
  1255. Related_3=relation to atmosphere|idh_ch3_p49
  1256. Related_4=Wegener's concept|idh_ch3_p26
  1257.  
  1258. ;plato
  1259. [KEYWORD_180]
  1260. GlossTopic=idh_plato
  1261. RelatedCount=1
  1262. Related_1=ancient cosomology|idh_pro_p4
  1263.  
  1264. ;pluto
  1265. [KEYWORD_181]
  1266. GlossTopic=idh_pluto
  1267. RelatedCount=4
  1268. Related_1=Charon satellite|idh_ch5_p37
  1269. Related_2=comparison to other planets|idh_ch5_p5
  1270. Related_3=discovery|idh_ch5_p41
  1271. Related_4=origin|idh_ch5_p37
  1272.  
  1273. ;polar caps
  1274. [KEYWORD_182]
  1275. GlossTopic=idh_polar
  1276. RelatedCount=0
  1277.  
  1278. ;pope
  1279. [KEYWORD_183]
  1280. GlossTopic=idh_pope
  1281. RelatedCount=1
  1282. Related_1=on Isaac Newton|idh_pro_p18
  1283.  
  1284. ;primitive bodies
  1285. [KEYWORD_184]
  1286. GlossTopic=idh_primitives
  1287. RelatedCount=2
  1288. Related_1=asteroids, comets|idh_ch6_p1
  1289. Related_2=meteorite parent bodies|idh_ch6_p9
  1290.  
  1291. ;primordial heat
  1292. [KEYWORD_185]
  1293. GlossTopic=idh_primordial
  1294. RelatedCount=3
  1295. Related_1=Earth, Venus|idh_ch3_p12
  1296. Related_2=Jupiter|idh_ch5_p8
  1297. Related_3=Saturn|idh_ch1_p26
  1298.  
  1299. ;prometheus
  1300. [KEYWORD_186]
  1301. GlossTopic=idh_prometheus
  1302. RelatedCount=2
  1303. Related_1=shepherd satellites|idh_ch5_p27
  1304. Related_2=illustration|idh_ch5_p28
  1305.  
  1306. ;ptolemaic system
  1307. [KEYWORD_187]
  1308. GlossTopic=idh_ptolemaic
  1309. RelatedCount=1
  1310. Related_1=geocentric cosmology|idh_pro_p5
  1311.  
  1312. ;ptolemy
  1313. [KEYWORD_188]
  1314. GlossTopic=idh_ptolemy
  1315. RelatedCount=1
  1316. Related_1=introduction|idh_pro_p4
  1317.  
  1318. ;radar imaging
  1319. [KEYWORD_189]
  1320. GlossTopic=idh_radar
  1321. RelatedCount=1
  1322. Related_1=use in exploration of Venus|idh_ch3_p7
  1323.  
  1324. ;radioactivity
  1325. [KEYWORD_190]
  1326. GlossTopic=idh_radioactivity
  1327. RelatedCount=2
  1328. Related_1=as energy source|idh_ch3_p12
  1329. Related_2=use in scientific analysis|idh_ch2_p15
  1330.  
  1331. ;reformation
  1332. [KEYWORD_191]
  1333. GlossTopic=idh_reformation
  1334. RelatedCount=1
  1335. Related_1=historical context|idh_pro_p11
  1336.  
  1337. ;renaissance astronomy
  1338. [KEYWORD_192]
  1339. GlossTopic=idh_renaissance
  1340. RelatedCount=2
  1341. Related_1=basis of|idh_pro_p7
  1342. Related_2=speculation about extraterrestrials|idh_ch4_p46
  1343.  
  1344. ;retrograde apparent motion
  1345. [KEYWORD_193]
  1346. GlossTopic=idh_retrograde
  1347. RelatedCount=1
  1348. Related_1=illustration|idh_pro_p17
  1349.  
  1350. ;rift zone
  1351. [KEYWORD_194]
  1352. GlossTopic=idh_rift
  1353. RelatedCount=1
  1354. Related_1=on Earth|idh_ch3_p27
  1355.  
  1356. ;ring of fire
  1357. [KEYWORD_195]
  1358. GlossTopic=idh_ring_of_fire
  1359. RelatedCount=1
  1360. Related_1=description|idh_ch3_p29
  1361.  
  1362. ;rings
  1363. [KEYWORD_196]
  1364. GlossTopic=idh_rings
  1365. RelatedCount=7
  1366. Related_1=classification|idh_ch5_p23
  1367. Related_2=discovery|idh_ch5_p5
  1368. Related_3=F Ring|idh_ch5_p18
  1369. Related_4=Neptune|idh_ch5_p21
  1370. Related_5=origin|idh_ch5_p28
  1371. Related_6=Saturn|idh_ch5_p16
  1372. Related_7=Uranus|idh_ch5_p21
  1373.  
  1374. ;rna
  1375. [KEYWORD_197]
  1376. GlossTopic=idh_rna
  1377. RelatedCount=1
  1378. Related_1=elemental component|idh_ch4_p47
  1379.  
  1380. ;rosetta stone
  1381. [KEYWORD_198]
  1382. GlossTopic=idh_rosetta
  1383. RelatedCount=1
  1384. Related_1=historical context|idh_ch6_p2
  1385.  
  1386. ;sagan
  1387. [KEYWORD_199]
  1388. GlossTopic=idh_sagan
  1389. RelatedCount=1
  1390. Related_1=scientist and writer|idh_ch3_p3
  1391.  
  1392. ;san andreas
  1393. [KEYWORD_200]
  1394. GlossTopic=idh_san_andreas_fault
  1395. RelatedCount=1
  1396. Related_1=description|idh_ch3_p29
  1397.  
  1398. ;sapas mons
  1399. [KEYWORD_201]
  1400. GlossTopic=idh_
  1401. RelatedCount=1
  1402. Related_1=illustration|idh_ch3_p9
  1403.  
  1404. ;satellites
  1405. [KEYWORD_202]
  1406. GlossTopic=idh_satellites
  1407. RelatedCount=6
  1408. Related_1=galilean|idh_ch5_p2
  1409. Related_2=Neptune|idh_ch5_p21
  1410. Related_3=other discoveries|idh_ch5_p4
  1411. Related_4=Titan|idh_ch5_p4
  1412. Related_5=Uranus|idh_ch5_p21
  1413. Related_6=chart|idh_ch5_p6
  1414.  
  1415. ;saturn
  1416. [KEYWORD_203]
  1417. GlossTopic=idh_saturn
  1418. RelatedCount=7
  1419. Related_1=atmosphere|idh_ch1_p25
  1420. Related_2=internal energy|idh_ch1_p26
  1421. Related_3=introduction|idh_ch1_p25
  1422. Related_4=magnetosphere|idh_ch6_p13
  1423. Related_5=ring system|idh_ch5_p16
  1424. Related_6=ring types|idh_ch5_p23
  1425. Related_7=movie|idh_ch1_p20
  1426.  
  1427. ;schiaparelli
  1428. [KEYWORD_204]
  1429. GlossTopic=idh_schiaparelli
  1430. RelatedCount=1
  1431. Related_1=astronomer|idh_ch4_p3
  1432.  
  1433. ;schmitt
  1434. [KEYWORD_205]
  1435. GlossTopic=idh_schmitt
  1436. RelatedCount=3
  1437. Related_1=Apollo astronaut|idh_ch2_p7
  1438. Related_2=Apollo mission|idh_ch2_p4
  1439. Related_3=surface explorations on Moon|idh_ch2_p26
  1440.  
  1441. ;seismometer
  1442. [KEYWORD_206]
  1443. GlossTopic=idh_seismometer
  1444. RelatedCount=1
  1445. Related_1=survey equipment|idh_ch3_p11
  1446.  
  1447. ;shepherd satellites
  1448. [KEYWORD_207]
  1449. GlossTopic=idh_shepard
  1450. RelatedCount=1
  1451. Related_1=description|idh_ch5_p27
  1452.  
  1453. ;shield volcanos
  1454. [KEYWORD_208]
  1455. GlossTopic=idh_shield_volcanoes
  1456. RelatedCount=3
  1457. Related_1=Io|idh_ch5_p31
  1458. Related_2=Mars|idh_ch4_p30
  1459. Related_3=Venus|idh_ch3_p20
  1460.  
  1461. ;sif mons
  1462. [KEYWORD_209]
  1463. GlossTopic=idh_sif_mons
  1464. RelatedCount=2
  1465. Related_1=description|idh_ch3_p20
  1466. Related_2=illustration|idh_ch3_p20
  1467.  
  1468. ;sister theory
  1469. [KEYWORD_210]
  1470. GlossTopic=idh_sister_theory
  1471. RelatedCount=1
  1472. Related_1=description|idh_ch2_p45
  1473.  
  1474. ;snc meteorite
  1475. [KEYWORD_211]
  1476. GlossTopic=idh_snc_meteorites
  1477. RelatedCount=1
  1478. Related_1=description|idh_ch4_p20
  1479.  
  1480. ;solar nebula
  1481. [KEYWORD_212]
  1482. GlossTopic=idh_solar_nebula
  1483. RelatedCount=2
  1484. Related_1=description|idh_ch6_p32
  1485. Related_1=meteorite generation|idh_ch6_p8
  1486.  
  1487. ;solar system
  1488. [KEYWORD_213]
  1489. GlossTopic=idh_solar_system
  1490. RelatedCount=7
  1491. Related_1=age|idh_ch6_p7
  1492. Related_2=chemistry|idh_ch6_p18
  1493. Related_3=completeness|idh_ch5_p40
  1494. Related_4=evolution|idh_ch6_p1
  1495. Related_5=introduction|idh_ch1_p3
  1496. Related_6=origin|idh_ch6_p32
  1497. Related_7=scale|idh_ch1_p5
  1498.  
  1499. ;spatial resolution
  1500. [KEYWORD_214]
  1501. GlossTopic=idh_spatial_resolution
  1502. RelatedCount=1
  1503. Related_1=in telescopes|idh_ch6_p35
  1504.  
  1505. ;spectroscopy
  1506. [KEYWORD_215]
  1507. GlossTopic=idh_spectroscopy
  1508. RelatedCount=2
  1509. Related_1=asteroid study|idh_ch6_p13
  1510. Related_2=introduction|idh_ch1_p11
  1511.  
  1512. ;spectrum
  1513. [KEYWORD_216]
  1514. GlossTopic=idh_spectrum
  1515. RelatedCount=2
  1516. Related_1=electromagnetic energy|idh_ch1_p12
  1517. Related_2=CHART|idh_ch1_p11
  1518.  
  1519. ;star
  1520. [KEYWORD_217]
  1521. GlossTopic=idh_star
  1522. RelatedCount=2
  1523. Related_1=appearance|idh_pro_p2
  1524. Related_2=energy source|idh_ch1_p20
  1525.  
  1526. ;stratosphere
  1527. [KEYWORD_218]
  1528. GlossTopic=idh_stratosphere
  1529. RelatedCount=3
  1530. Related_1=Chicxulub impact|idh_epi_p6
  1531. Related_2=comet dust|idh_ch6_p29
  1532. Related_3=ozone layer|idh_ch3_p47
  1533.  
  1534. ;stromatolites
  1535. [KEYWORD_219]
  1536. GlossTopic=idh_stromatolites
  1537. RelatedCount=1
  1538. Related_1=description|idh_ch3_p46
  1539.  
  1540. ;subduction zone
  1541. [KEYWORD_220]
  1542. GlossTopic=idh_subduction
  1543. RelatedCount=1
  1544. Related_1=description|idh_ch3_p29
  1545.  
  1546. ;subtropical
  1547. [KEYWORD_221]
  1548. GlossTopic=idh_subtropical
  1549. RelatedCount=1
  1550. Related_1=Earth region|idh_ch3_p35
  1551.  
  1552. ;sun
  1553. [KEYWORD_222]
  1554. GlossTopic=idh_sun
  1555. RelatedCount=3
  1556. Related_1=composition|idh_ch1_p1
  1557. Related_2=evolution|idh_ch3_p49
  1558. Related_3=spectrum illustration|idh_ch1_p11
  1559.  
  1560. ;supersonic
  1561. [KEYWORD_223]
  1562. GlossTopic=idh_supersonic
  1563. RelatedCount=1
  1564. Related_1=Neptune jet stream|idh_ch1_p33
  1565.  
  1566. ;taurus mt
  1567. [KEYWORD_224]
  1568. GlossTopic=idh_taurus
  1569. RelatedCount=0
  1570.  
  1571. ;telescopes
  1572. [KEYWORD_225]
  1573. GlossTopic=idh_telescope
  1574. RelatedCount=2
  1575. Related_1=first use|idh_pro_p10
  1576. Related_2=Galileo's experiments|idh_ch5_p2
  1577.  
  1578. ;terminal bombardment
  1579. [KEYWORD_226]
  1580. GlossTopic=idh_terminal
  1581. RelatedCount=2
  1582. Related_1=description|idh_ch2_p25
  1583. Related_2=chart|idh_ch2_p23
  1584.  
  1585. ;tharsis
  1586. [KEYWORD_227]
  1587. GlossTopic=idh_tharsis
  1588. RelatedCount=2
  1589. Related_1=description|idh_ch4_p18
  1590. Related_2=volcanoes|idh_ch4_p27
  1591.  
  1592. ;thermocouple
  1593. [KEYWORD_228]
  1594. GlossTopic=idh_thermocouple
  1595. RelatedCount=1
  1596. Related_1=scientific analysis with|idh_ch4_p5
  1597.  
  1598. ;titan
  1599. [KEYWORD_229]
  1600. GlossTopic=idh_titan
  1601. RelatedCount=1
  1602. Related_1=description|idh_ch5_p34
  1603.  
  1604. ;tombaugh
  1605. [KEYWORD_230]
  1606. GlossTopic=idh_tombaugh
  1607. RelatedCount=1
  1608. Related_1=astronomer|idh_ch5_p40
  1609.  
  1610. ;trojan asteroids
  1611. [KEYWORD_231]
  1612. GlossTopic=idh_trojan
  1613. RelatedCount=1
  1614. Related_1=description|idh_ch6_p15
  1615.  
  1616. ;tropical
  1617. [KEYWORD_232]
  1618. GlossTopic=idh_tropical
  1619. RelatedCount=1
  1620. Related_1=Earth region|idh_ch4_p24
  1621.  
  1622. ;troposphere
  1623. [KEYWORD_233]
  1624. GlossTopic=idh_troposphere
  1625. RelatedCount=1
  1626. Related_1=description|idh_ch3_p36
  1627.  
  1628. ;tycho crater
  1629. [KEYWORD_234]
  1630. GlossTopic=idh_tycho
  1631. RelatedCount=1
  1632. Related_1=description|idh_ch2_p20
  1633.  
  1634. ;ultraviolet Radiation
  1635. [KEYWORD_235]
  1636. GlossTopic=idh_ultraviolet
  1637. RelatedCount=2
  1638. Related_1=in our atmosphere|idh_ch3_p46
  1639. Related_2=relation to ozone depletion|idh_ch3_p52
  1640.  
  1641. ;usgs
  1642. [KEYWORD_236]
  1643. GlossTopic=idh_united_states_geological_survey
  1644. RelatedCount=2
  1645. Related_1=Masursky's Mars studies|idh_ch4_p26
  1646. Related_2=Gilbert's crater studies|idh_ch2_p18
  1647.  
  1648. ;uranus
  1649. [KEYWORD_237]
  1650. GlossTopic=idh_uranus
  1651. RelatedCount=6
  1652. Related_1=atmosphere|idh_ch1_p29
  1653. Related_2=description|idh_ch1_p28
  1654. Related_3=discovery|idh_ch1_p27
  1655. Related_4=exploration|idh_ch1_p8
  1656. Related_5=ring structure|idh_ch5_p23
  1657. Related_6=ring system|idh_ch5_p19
  1658.  
  1659. ;utopia
  1660. [KEYWORD_238]
  1661. GlossTopic=idh_utopia
  1662. RelatedCount=1
  1663. Related_1=Viking landing site|idh_ch4_p24
  1664.  
  1665. ;valles marineris
  1666. [KEYWORD_239]
  1667. GlossTopic=idh_valles
  1668. RelatedCount=1
  1669. Related_1=description|idh_ch4_p31
  1670.  
  1671. ;van allen radiation belts
  1672. [KEYWORD_240]
  1673. GlossTopic=idh_van_allen
  1674. RelatedCount=1
  1675. Related_1=description|idh_ch1_p34
  1676.  
  1677. ;vega program
  1678. [KEYWORD_241]
  1679. GlossTopic=idh_vega
  1680. RelatedCount=1
  1681. Related_1=description|idh_ch6_p23
  1682.  
  1683. ;venera
  1684. [KEYWORD_242]
  1685. GlossTopic=idh_venera
  1686. RelatedCount=1
  1687. Related_1=description|idh_ch3_p6
  1688.  
  1689. ;venus
  1690. [KEYWORD_243]
  1691. GlossTopic=idh_venus
  1692. RelatedCount=9
  1693. Related_1=atmosphere|idh_ch3_p34
  1694. Related_2=chemical differences with Earth|idh_ch3_p43
  1695. Related_3=comparison with Earth|idh_ch3_p10
  1696. Related_4=craters|idh_ch3_p16
  1697. Related_5=exploration|idh_ch3_p5
  1698. Related_6=introduction|idh_ch3_p5
  1699. Related_7=surface topography|idh_ch3_p14
  1700. Related_8=tectonics|idh_ch3_p30
  1701. Related_9=volcanism|idh_ch3_p20
  1702.  
  1703. ;vesalius
  1704. [KEYWORD_244]
  1705. GlossTopic=idh_vesalius
  1706. RelatedCount=1
  1707. Related_1=anatomist|idh_pro_p2
  1708.  
  1709. ;vesta
  1710. [KEYWORD_245]
  1711. GlossTopic=idh_vesta
  1712. RelatedCount=1
  1713. Related_1=description|idh_ch6_p14
  1714.  
  1715. ;vesuvius
  1716. [KEYWORD_246]
  1717. GlossTopic=idh_vesuvius
  1718. RelatedCount=1
  1719. Related_1=description|idh_ch3_p19
  1720.  
  1721. ;viking
  1722. [KEYWORD_247]
  1723. GlossTopic=idh_viking
  1724. RelatedCount=4
  1725. Related_1=experiments|idh_ch4_p47
  1726. Related_2=introduction|idh_ch4_p9
  1727. Related_3=landing|idh_ch4_p23
  1728. Related_4=satellite photos|idh_ch6_p19
  1729.  
  1730. ;volcanism
  1731. [KEYWORD_248]
  1732. GlossTopic=idh_volcanism
  1733. RelatedCount=7
  1734. Related_1=Earth|idh_ch3_p18
  1735. Related_2=Io|idh_ch5_p29
  1736. Related_3=Mars|idh_ch4_p26
  1737. Related_4=Moon|idh_ch2_p15
  1738. Related_5=Plate tectonics|idh_ch3_p29
  1739. Related_6=Triton|idh_ch5_p38
  1740. Related_7=Venus|idh_ch3_p18
  1741.  
  1742. ;voyager
  1743. [KEYWORD_249]
  1744. GlossTopic=idh_voyager
  1745. RelatedCount=5
  1746. Related_1=introduction|idh_ch1_p8
  1747. Related_2=Io exploration|idh_ch5_p29
  1748. Related_3=Neptune|idh_ch5_p19
  1749. Related_4=Titan|idh_ch5_p34
  1750. Related_5=Uranus|idh_ch5_p19
  1751.  
  1752. ;vredefort complex
  1753. [KEYWORD_250]
  1754. GlossTopic=idh_vredefort
  1755. RelatedCount=1
  1756. Related_1=description|idh_ch3_p17
  1757.  
  1758. ;war of the worlds
  1759. [KEYWORD_251]
  1760. GlossTopic=idh_war_of_the_worlds
  1761. RelatedCount=1
  1762. Related_1=historical context|idh_ch4_p1
  1763.  
  1764. ;wavelength
  1765. [KEYWORD_252]
  1766. GlossTopic=idh_wavelength
  1767. RelatedCount=0
  1768.  
  1769. ;wegener
  1770. [KEYWORD_253]
  1771. GlossTopic=idh_wegener
  1772. RelatedCount=1
  1773. Related_1=geologist|idh_ch3_p26
  1774.  
  1775. ;wells
  1776. [KEYWORD_254]
  1777. GlossTopic=idh_wells
  1778. RelatedCount=1
  1779. Related_1=author|idh_ch4_p1
  1780.  
  1781. ;white ovals
  1782. [KEYWORD_255]
  1783. GlossTopic=idh_white_ovals
  1784. RelatedCount=1
  1785. Related_1=description|idh_ch1_p24
  1786.  
  1787. ;xavier
  1788. [KEYWORD_256]
  1789. GlossTopic=idh_xavier
  1790. RelatedCount=1
  1791. Related_1=historical context|idh_pro_p9
  1792.