Today's Situation Room:
Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
NASA-contracted rocket explodes on launch
An unmanned NASA-contracted rocket exploded moments after its scheduled launch to the International Space Station. Full story
Ground Control to Major Frog
3, 2, 1... a frog blasts off with a moon probe. CNN's Jeanne Moos reports on one small leap for a frog and one giant leap for frogkind.
See how rockets are made for NASA
Though the days of NASA's space shuttle launches are over, the rocket building business is booming. CNN's John Zarrella reports.
NASA to doomsday theorists: You're wrong
CNN's Lisa Sylvester reports on NASA's attempt to quell Mayan doomsday theories as the Dec. 21 "end date" approaches.
See Endeavour's journey in 1 minute flat
Time-lapse video shows the space shuttle Endeavour's trip to its new home at the California Science Center.
RELATED STORY: Endeavour's last ride, a trip through L.A.
Meet the man behind the photos of Mars
CNN's John Zarrella reports on a man who's spent nearly two decades photographing Mars for us to see.
About this Show
The Situation Room with Wolf Blitzer is the command center for breaking news, politics and extraordinary reports from around the world. Tune in weeknights from 5-7pm ET on CNN.
