Space (L)

Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental ...

Landing STS-26, Shuttle Discovery, October 3, 1988

Landing STS-26, Shuttle Discovery, October 3, 1988

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Light Echoes from a Red Supergiant V838

Light Echoes from a Red Supergiant V838

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