It’s terribly hard to find exoplanets that look like our homeworld. The search requires development of astoundingly powerful and precise instruments. That’s the job Debra Fischer and her team have taken on. Emily Lakdawalla reports from JPL on what the Dawn spacecraft has taught us about a world called Vesta. Casey Dreier sits in for Bill Nye with an update on space policy and budget developments in Washington DC. The Little Green Men take over this week’s What’s Up segment with Bruce Betts and Mat Kaplan.