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Apollo Saturn V F-1 Engine Thrust Chamber
A set of F-1 rocket engines from a Saturn V booster will soon go on display.
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Venus, Mars and Earth Lined Up
Scientists are studying other rocky planets and moons to better understand Earth.
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Satellite image of the storm that gave rise to the Moore, Okla. tornado on May 20.
The storms that gave rise to the Moore, Okla. tornado and others nearby were sighted from space.
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Three Planets May 24-26, 2013, Sky Maps
Such a tight three-planet grouping won't happen again until 2026.
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A solar flare and sun eruption was unleashed on May 3, 2013.
A large coronal mass ejection from the active sun could affect entire continents, scientists say.
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Tom Costello from NBC News moderates a panel discussion titled "Sally Ride: How Her Historic Space Mission Opened Doors for Women in Science" at the National Air and Space Museum on Friday, May 17, 2013 in Washington
Astronauts, celebrities and the public honored the late Sally Ride with a tribute to her life and work.
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