Iron meteorites are particularly sensitive to even the slightest bit of moisture - including the touch of a finger. James Williams pokes around for the reasons why.
After a three-billion mile journey into the outer reaches of the solar system, the Stardust spacecraft has landed at it's permanent home. Dave Mosher brings us up to speed. Kasey-Dee Gardner produces.
NASA just smashed the LCROSS and spent Centaur rocket into the moon in a search for water on the lunar surface. Even better - the impact was captured on video! Did it live up to the hype? James WIlliams takes a look.
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