Human space flight
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ISS astronaut tweets 'saddest photo yet' - Capturing Gaza war zone from space
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Apollo 11 mission patch to fly with first astronauts to Mars
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Cygnus spacecraft launches to International Space Station
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Private space tourism balloon passes flight test, may go commercial in 2016
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This balloon can take tourists to the edge of space... for $75000
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Forget the moon, NASA now wants to colonize Mars
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Elon Musk, SpaceX CEO: Humans will step on Mars by 2026
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Lavazza, Argotech-designed espresso machine will allow ISS astronauts to enjoy fresh brewed coffee
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Smoke on ISS scares astronauts
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Mars mission vital but not viable, scientists say
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Vintage photos of Apollo astronauts training in Hawaii for moon mission released
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Unusual NASA experiment will offer insight into how space travel affects twins
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