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Life on the International Space Station
Astronauts Rick Mastracchio and Mike Hopkins tell NBC's Brian Williams about what it's like to work on the ISS and why – if you have to work during the holidays -- there's "not too many places better than being here."
160 heartbeats per minute: The final, frantic moments before the historic moon landing01:59
Celestial object may help unlock mysteries of the early universe01:03
Scientists discover twelve new moons orbiting Jupiter, one of them is an oddity01:38
NASA towers demolished at Cape Canaveral00:29
The geographical anomaly that makes Venus’ rotation so strange02:06
Realizing the dream of space: Astronaut Peggy Whitson on leaving Earth for the first time03:38