This image from NASA's Kepler spacecraft shows members of the Pleiades star cluster taken during Campaign 4 of the K2 Mission. The cluster stretches across two of the 42 charge-coupled devices ...

That spacecraft, the Kepler Space Telescope ... One question was whether to sharpen the telescope’s focus after the first images seemed slightly blurry. It was designed to be adjusted, but ...

Here are some pics of most earth-like exoplanets uploaded by NASA: Gliese 667Cc, 22 light-years from Earth, is 4.5 times Earth's mass, orbits its cooler red dwarf star in 28 days, and likely resides ...

The dwarf irregular galaxy NGC 4214 resides about 10 million light-years away. The galaxy’s relative proximity, combined with the wide variety of evolutionary stages among its stars. This image from ...

The mission of NASA's Kepler spacecraft is in peril. The space agency says a malfunction has disabled a reaction wheel that keeps Kepler's telescope pointed precisely at far-away planets ...

Combined with the precise knowledge of the space segment topology, Kepler can thus largely eliminate the main factors influencing signal-in-space errors. This leads to an unprecedented precision and a ...

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Discovered by NASA’s Kepler spacecraft between 2009 and 2012, Kepler-442b is a super-Earth, meaning it’s larger than Earth ...

As with many space telescope missions, Kepler's dataset is open to the public. NASA maintains a database with the raw data collected during the space telescope's observations, and researchers are ...