"How many major planets orbit our sun?","7","8","9","11","9","sun.bmp"
"What is the name of the 4th planet from the Sun?","Mars","Venus","Earth","Jupiter","Mars","mars.bmp"
"An Astronomical Unit is the distance between which two objects?","Sun to Pluto","Sun to Alpha Centauri","Sun to Earth","Earth to Moon","Sun to Earth",""
"Which is the closest planet to the Sun in our solar system?","Venus","Mercury","Triton","Mars","Mercury",""
"Who discovered the planet Uranus?","Clyde Tombaugh","Percival Lowell","William Herschel","Johann Encke","William Herschel","uranus.bmp"
"How many times a year does the planet Mercury rise high enough in the night sky after sunset to be observed easily?","2","3","4","5","3","mercury.rle"
"How many known satellites does the planet Neptune have?","2","4","6","8","8","neptune.rle"
"Which planet is pictured?","Saturn","Neptune","Jupiter","Mars","Jupiter","jupiter.rle"
"Which moon is the only moon in our solar system to exhibit retrograde rotation?","Nereid","Titania","Triton","Miranda","Triton",""
"What is the name of Pluto's moon?","Triton","Carol","Charon","Io","Charon","pluto.bmp"
"What is the main atmospheric component of the planet Earth?","Oxygen","Carbon Dioxide","Hydrogen","Nitrogen","Nitrogen","earth.bmp"
"How many known moons does the planet Saturn (pictured) have?","7","9","15","21","21","saturn.rle"
"Which planet is referred to as the 'Red Planet'","Jupiter","Saturn","Venus","Mars","Mars","mars.bmp"
"Rapidly moving charged particles caught in the Earth's magnitic field beyond the atmosphere comprise ..","outer space","nuclear layers","the Van Allen belt","the Parkinson layer","the Van Allen belt",""
"Which is the largest minor planet?","Apollo","Adonis","Ceres","Hildago","Ceres",""
"The spacecraft Magellan was sent to map which planet?","Mars","Jupiter","Jupiter, Saturn, Neptune and Uranus","Venus","Venus",""
"How many known moons does the planet Venus have?","0","1","2","4","0","venus.rle"
"Which planet's appearance is most like the Earth's Moon?","Mars","Neptune","Mercury","Pluto","Mercury","moon.bmp"
"How many days in Earth's solar year?","365 days","365.26 days","366 days","365.5 days","365.26 days","earth.bmp"
"What is the Moon's average period of revolution around the Earth?","28 days","30 days","27.3 days","29.53 days","29.53 days","moon.bmp"
"Who first observed the rings of Saturn?","Isaac Newton","William Herschel","Galileo Galilei","Archimdes","Galileo Galilei","saturn.rle"
"How many planets in our solar system comprise the 'Inner Planets'?","3","4","5","7","4",""
"Which planet has the most number of moons","Saturn","Jupiter","Neptune","Uranus","Saturn",""
"The solar eclipse pictured is ..","a total eclipse","a partial eclipse","an annular eclipse","","an annular eclipse","eclipsea.rle"
"'Asteroids' are also know as .....? (Gaspra is pictured)","minor objects","minor planets","minor comets","meteorites","minor planets","gaspra3d.bmp"
"How many known satellites does the planet Jupiter have?","4","6","9","16","16","jupiter.rle"
"Which moon is Saturn's largest?","Mimas","Phoebe","Titan","Tethys","Titan","saturn.rle"
"The orbit of Pluto around the Sun takes about how long?","30 years","100 years","250 years","1000 years","250 years","pluto.bmp"
"Is the shape of Mars' orbit 'more circular' or 'less cirular' than the Earth's?","more circular","less circular","nearly the same","nearly parabolic","less circular","mars.bmp"
"Which moon of Jupiter is its largest?","Ganymede","Io","Europa","Callisto","Ganymede","jupiter.rle"
"When is the Moon at opposition?","New Moon","First Quarter","Last Quarter","Full Moon","Full Moon","moon.bmp"
"What are the terms 'Encke and Cassini divisions' related to?","Jupiter's rings","Saturn's rings","Neptune's rings","Uranus' rings","Saturn's rings",""
"If a moon's orbit is in the direction opposite of the planet's rotation, the orbit is termed..","anti-cliptic","regressive","retrograde","normal","retrograde",""
"What is the brightest planet in the night sky?","Jupiter","Saturn","Mars","Venus","Venus",""
"How many satillites does the planet Mars have?","0","2","3","4","2","mars.bmp"
"The atmosphere of Venus is very dense. What is its atmospheric pressure compared to Earth?","4x Earth","10x Earth","40x Earth","90x Earth","90x Earth","venus.rle"
"Which planet is the 7th from the Sun?","Uranus","Neptune","Saturn","Jupiter","Uranus","uranus.bmp"
"How long is an Earth sidereal day?","24 hours","23 hours and 56 minutes","24.022 hours","26 hours","23 hours and 56 minutes","earth.bmp"
"In a solar eclipse, which object passes between the Sun and the Earth?","Venus","Mars","Moon","Mercury","Moon","eclipset.bmp"
"What is the dark eliptical area around the middle of the 8th planet?","an atmospheric storm.","the impact site of a comet.","a dark cloud of nitrogen.","","an atmospheric storm.",""
"Which planet is the 8th from the Sun?","Jupiter","Saturn","Neptune","Mars","Neptune","Neptune.rle"
