You Never Get a Seventh Chance to Make a First Impression: An Awkward History of Our Space Transmissions
It's official. The aliens are coming. In 2017. Turns out they might like The Beatles after all. The UN is on the case. The Hindus are going to be especially upset.
Light Reflection: a brilliant fan of cryogenics venting from a relief valve on STS-122 Atlantis' ET (external tank) post-separation. Also see this handheld video of the ET, with money shots at 2:15 and 3:55. [more inside]
ET Could Hack SETI. SETI, which uses down time on the computers of thousands of volunteers to search for intelligent signals from space, has a potential problem—besides information, a broadcast to us from an alien intelligence could also carry a computer virus. Leonard David writes in the main link's space.com article that physicist Richard Carrigan (who works here) takes it seriously. He thinks SETI should figure out how to decontaminate any signals it receives.