[Tuesday, May 19, 2009] The world's largest and longest-running volunteer computing project, SETI@home, celebrates its tenth anniversary this month with 140,000 participants and 235,000 computers powering the search for intelligent signals from space.

[Wednesday, May 20, 2009] A NASA study indicates that an intense asteroid bombardment nearly 4 billion years ago may not have sterilized the early Earth as completely as previously thought. The asteroids, some the size of Kansas, possibly even provided a boost for early life.

[Tuesday, May 26, 2009] Using instruments aboard the Deep Impact spacecraft, a team of astronomers and astrobiologists has devised a technique to tell whether such a planet harbors liquid water, which in turn could tell whether it might be able to support life.

[Saturday, May 30, 2009] The robot that scientists deployed last year into ice-covered Lake Bonney in Antarctica's McMurdo Dry Valleys isn't small.