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Posts Tagged "nearest stars"

Observations

Astronomer Locates Previously Unseen Neighbor to the Sun

WISE-1049-5319

When NASA launched the WISE satellite in 2009, astronomers hoped it would be able to spot loads of cool, dim objects known as brown dwarfs. Bigger than a planet, a brown dwarf is not quite a star, either—it is too small to sustain the nuclear fusion reactions that turn hydrogen to helium. But it may [...]

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