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- From: alleycat@eastky.com (Alleycat)
- Newsgroups: alt.alien.visitors,alt.paranet.ufo,alt.alien.research,alt.ufo.reports,alt.paranet.abduct,sci.skeptic,alt.paranet.science
- Subject: Re: Are all believers crackpots?
- Date: Thu, 13 Jun 1996 06:53:19 GMT
- Organization: Mikrotec Internet Services, Inc. (MISNet)
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-
- Jim Rogers <jfr@fc.hp.com> wrote:
-
- >Charles Gregory wrote:
- >> Jim Rogers <jfr@fc.hp.com> wrote:
- >> > > With the number of stars, its virtually certain that
- >> > > there is other life out there somewhere.
- >>
- >> > The problem is coming up with numbers for the frequency...
- >>
- >> Lack of observational data on planet formation. See "next century". <G>
-
- >Actually, maybe even next decade. Really! (hmm, technically that's "next
- >century" and "next millenium," too).
- snip
- >> > > Our telescopes are good enough now to look for planets around the
- >> > > nearest stars. There aren't any that close.
- snip
-
- CLOSEST PLANETARY SYSTEM DISCOVERED
-
- Astronomers have discovered another planetary system.
- This one is
- located around the star Lalande 21185.
- However, this discovery is particularly intriguing, as
- Lalande is
- the 4th closest star to us, located only 8.1 light-years away
- from our sun.
-
- The four other planetary systems are located between 35
- and 50
- light-years away from us.
- Lalande itself is a red dwarf star. One planet orbiting
- Lalande is
- larger than Jupiter and is orbiting at approximately Saturn's
- distance (a
- 30-year orbit). The other planet is a much smaller body with a
- 5.8-year
- orbit. It is located at approximately the distance from the sun
- to the
- Mars-Jupiter asteroid belt.
- However, it is unlikely that either planet will be
- hospitable to life.
- However, the astronomer who reported this, Dr. George
- Gatewood, has
- come under fire because there are some doubts regarding his
- results, and
- they are yet to be confirmed by other astronomers.
- In any case, it is clear that we quickly determining the
- likelihood
- of a planetary system being developed. Such data would be useful
- for
- things such as the Drake Equation - the greater number of
- planetary
- systems, the higher the probability that more planets will be
- hospitable to
- life.
- Current instruments used to find planetary systems are
- only able to
- find planets the size of Jupiter, which skews results. New
- detectors are
- being built by NASA to detect smaller planets.
- "It's too soon to tell how common planetary systems are,"
- said Dr.
- David Black. "We need to survey at least 1,000 stars, which will
- be done in
- the next decade. Then we would get a statistical basis for
- estimating the
- occurrences of planetary systems."
-
- ______________________________
- AMINO ACIDS MAY EXIST IN SPACE
-
- Astronomers announced at a meeting of the American
- Astronomical
- Society that they have evidence may prove that amino acids can
- exist in
- space.
- Using radiotelescopes, astronomers at the University of
- Illinois at
- Champaign-Urbana detected traces of acetic acid in space in the
- Sagittarius
- B2 cloud. Acetic acid, which gives vinegar its taste and odour,
- can form
- simple amino acids when combined with ammonia, which is already
- known to
- exist in interstellar space. Amino acids are essentially the
- building
- blocks of life.
- "With the discovery of acetic acid, it is very plausible
- that
- simple amino acids do exist in space," said Dr. Lewis E. Snyder,
- director
- of the university's Laboratory of Astronomical Imaging.
- Even more complex molecules have been found before in
- interstellar
- space. Many researches speculate that important biological
- molecules could
- form in space.
- Other researchers go as far as to say that such
- biological
- molecules could have seeded Earth with life. This theory is
- known as
- panspermia.
- "In 100 years, it may be appreciated that we are looking
- at part of
- the answer here in astrochemistry, and that molecules arriving
- from space
- on comets and asteroids perhaps were important catalysts for
- starting life
- in the solar system," commented Snyder.
-
- Related Information:
-
- http://ume.med.ucalgary.ca/aufora/news/updates/041496.html
-
-
-
-