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A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.
Astronomers discovered a planet that orbits its star so closely that its surface is being scorched into magma and vaporizing ...
About 140 light-years from Earth, there is a planet that is rapidly disintegrating. The crumbling world is roughly the mass [ ...
Grunsfeld, a former NASA astronaut who has served as both the agency's chief scientist and science division leader, helped ...