The search for signals from intelligent beings beyond Earth will continue when the SETI Institute reboots its array of 42 antennas north of San Francisco.
Earth's moon was thought to be 4.57 billion years old, but a detailed analysis of lunar rock indicates it might be as much as 200 million years younger.
Curiosity has more than twice the length and and five times the weight of previous Mars rovers. It's scheduled to launch in 2011 and arrive in August 2012.
Laura Dattaro came to EarthSky from the Baltimore City Paper, where she remains an associate editor, and from @ldattaro on Twitter. She is a 2009 graduate of University of Delaware with degrees in English and music and sees science as a way to unite humanity behind a greater good, besides being simply the coolest thing to read and write about. She currently lives in Baltimore.