Stashed in: The Universe, Space, Favorites, SETI
The probability of intelligent life out there keeps getting a little higher.
Hubble Telescope Reveals Deepest View of the Universe Yet: Scientific American
Earth's Water Is Older Than the Sun - D-brief | DiscoverMagazine.com
Hubble Peers Into the Heart of the Milky Way Galaxy
Explanation of the appearant *retrograde* (going backward) motion of planets