Extras

Video thumbnail: NOVA Ultimate Mars Challenge Preview

NOVA

Ultimate Mars Challenge Preview

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

Ultimate Mars Challenge Preview

Video thumbnail: NOVA Parachute Problems

NOVA

Parachute Problems

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

Parachute Problems

Video thumbnail: NOVA Space Kids

NOVA

Space Kids

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

Space Kids