This is a great presentation about the search for exoplanets. Featuring the techniques (transit and radial velocity), instruments (Kepler and Keck), and the ongoing challenges involved in finding these diverse far-away worlds. Aside from noting the race to find the first earth-sized exoplanet, it also touches upon the prospect of finding life on exoworlds--one of the main goals of the Science of Exoplanets. It also includes some great quotes from leading astronomers and scientists. Watch it in its entirety. Highly recommended!
"We're gonna have an existential shock, looking at the night sky. Realizing that there--there-there are earth-like twins in outer space. And then we're gonna wonder: Is there anyone looking back?" ~ Michio Kaku
"The 64 million dollar question is whether or not there are other intelligent life in the universe. The answer is definitely yes!" ~ Geoff Marcy
"I think it's inevitable that we're gonna find another intelligent life in outer space. Get used to it." ~ Michio Kaku
Planet Data to Hunt for Life