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Black Hole "Hearts" Warm Galaxies, Control Growth
Buried Mars Glaciers May Be Remnants of Past Ice Age
Photograph courtesy NASA/JPL/Space Science Institute
Saturn is the only planet in our solar system that is less dense than water. If you could build an imaginary gigantic bathtub, Saturn would float in it. --NASA
A NASA scientist scans crystals as he searches for clues to how life might live on distant planets.
Head of National Geographic News David Braun gives readers his unique perspective on news about science, nature, and cultures.
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