DATABASE: The Unbearable Lightness of Zero g

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Science  24 Jan 2003:
Vol. 299, Issue 5606, pp. 485
DOI: 10.1126/science.299.5606.485d

In space, an astronaut's chest puffs up—not because of pride in the mission but because body fluids that would sink into the limbs on Earth linger in the torso instead. For more than 3 decades, scientists have been weighing the effects of reduced gravity on everything from blood circulation to the growth of crystals to the activation of the immune system's T cells. Find out what they've learned at the European Space Agency's Microgravity Database, which describes hundreds of physical and life science experiments carried out in space or in earthly simulators of low gravity. The studies come mainly from American, Russian, Soviet, and European space launches. Entries summarize the methods and results of each experiment, provide references, and often include original figures from publications and author contact information.

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