Moon Smasher - 02:15

Tag along with a team of scientists at NASA who will smash two SUV-sized rockets onto the lunar surface and unleash a debris cloud to study with LCROSS (Lunar Crater Observation and Sensing Satellite).

Phoenix Mars Lander - 01:55

With behind-the-scenes access, NOVA scienceNOW covers the Mars lander Phoenix's thrilling descent to the martian surface and its critical early days of operations. Phoenix will dig into the permafrost to obtain samples of martian dirt and ice for analysis in onboard labs, seeking any evidence that the Red Planet might once have sustained microbial life—or perhaps still does.