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FWD: (eS) Lost in Space & Ancient telescopes

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  • Frits Westra
    ======================= exoScience - http://www.exosci.com/Hey everyone,A report in Nature is provoking discussion amongst those involved in the search for
    Message 1 of 1 , Jul 1, 1999
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      exoScience - http://www.exosci.com/

      Hey everyone,

      A report in Nature is provoking discussion amongst those involved in the
      search for extraterrestrial life. The report, written by David Stevenson,
      proposes that small, rocky planets similar to the Earth can be ejected
      from their solar systems during formation, and that these rogue planets
      could support life.

      The ejected planets could harbour a hydrogen atmosphere. Such an
      atmosphere, if it were sufficiently thick, could help retain heat and may
      even permit the formation of surface liquid water oceans. Read the full
      story at:
      http://www.exosci.com/news/170.html


      Also in the news, scientists may have found the oldest telescope in the
      world! An Assyrian rock crystal lens has been found. There is much
      speculation that this lens could have been used as a telescope, helping to
      explain the Assyrians' advanced knowledge of astronomy. This all took
      place 3 thousand years prior to Galileo. Read it:
      http://news.bbc.co.uk/hi/english/sci/tech/newsid_380000/380186.stm

      Dave Watanabe
      davew@...
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