Extras

NOVA

Ultimate Mars Challenge Preview

Preview: S39 Ep15 | 30s

Airs Wednesday, December 11, 2013 at 9:00 p.m. ET/PT. Check your local listings.

NOVA

Parachute Problems

Clip: S39 Ep15 | 2m 54s

NASA untangles why a parachute failed during tests prior to the Curiosity landing.

NOVA

Space Kids

Clip: S39 Ep15 | 1m 34s

Engineers who landed the Curiosity rover on Mars recall their early love of space.