Kepler, a NASA mission to search for Earth-like planets, was successfully launched at 10:49:57.465 p.m. EST on March 6, 2009.
The Kepler instrument is a 1 metre aperture telescope that will monitor the brightness of over 100 000 stars continuously for at least 3.5 years. The science team is looking for repeated drops in the brightness of a star caused by an Earth-like planet transit.
I've identified some of the stars visible (down to 7th magnitude!). tau Boo is known to host a Jupiter-like planet.