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.
Wolf Blitzer speaks to Mark Kelly and Miles O'Brien about the failure of Virgin Galactic's SpaceShipTwo.
Officials report that Virgin Galactic's SpaceShipTwo failed during a test flight due to an in-flight anomaly.
News that broke in The Situation Room: For the second time this year, one of the pumps that cools the International Space Station has failed. NASA says the crew is not in imminent danger, but as CNN's John Zarrella reports, they will have to conduct a space walk to fix the malfunction.
The spacecraft should break up as it re-enters the atmosphere but no one knows where the space junk will hit.
It skyrocketed to the top of the box office this past weekend, but many in the scientific community and beyond are asking how accurate is the blockbuster "Gravity"? CNN's Jeanne Moos talks to one astronaut and has him weigh in on star Sandra Bullock's tools, underwear, and hair.
Space agencies confirm they've found a deep azure blue planet orbiting a star 63 light years away.
RELATED STORY: Hubble telescope spots azure blue planet where it rains glass
Singing astronaut Chris Hadfield covers David Bowie's song "Space Oddity" in space and wows cyberspace. CNN's Jeanne Moos reports on an out-of-this-world song. (Video)
See the full music video on YouTube
Though the days of NASA's space shuttle launches are over, the rocket building business is booming. CNN's John Zarrella reports.
CNN's Lisa Sylvester reports on earth's defense against exploding meteors and fly-by asteroids.
CNN's Tom Foreman takes a look at a meteor that exploded over Russia and an asteroid that passed by Earth.
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.
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