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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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Observations

WISE satellite already spots two brown dwarfs

WISE brown dwarfs

MIAMI—A satellite launched by NASA in 2009 to map the sky in infrared wavelengths is beginning to deliver on one of its ancillary promises, the mission’s scientific leader said here at the semiannual meeting of the American Astronomical Society. Edward Wright, a University of California, Los Angeles, astronomer who serves as principal investigator for the [...]

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