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The collection of scientific disciplines dedicated to studying the universe from the unique vantage point of space, and understanding space itself as an environment. This includes astronomy (observing without atmospheric distortion), planetary science, heliophysics (studying the Sun's influence), and microgravity research (studying fluid dynamics, materials, and biology in freefall). It provides the fundamental knowledge about where we're going and what we'll find there, from mapping asteroid compositions to understanding how cosmic radiation affects DNA.
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