Astronomers have confirmed the existence of frozen water on the surface of Saturn's moon Hyperion and have also discovered solid carbon dioxide there. The evidence comes from spectra taken by the Cassini spacecraft during the first flyby of the moon, in September 2005. The craft's observations of Hyperion's craggy surface also reveal dark material that appears to be other hydrocarbons.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.