Twelve years ago, NASA made an exciting prediction: the Kepler telescope would discover around 50 Earth-like planets, planets that closely resemble our own in size, temperature, and proximity to a ...

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...

The orbits of a seven-planet system discovered in Kepler Space Telescope data has been sonified. Credit: Bishop’s University ...

NASA's Kepler Telescope Captures 'Brilliant Flash' of Supernova Shockwave for 1st Time Ever After three years of searching, scientists have caught the elusive phenomenon.

S pace-watchers saw the handwriting on the wall months ago, but now it’s official: NASA ’s Kepler spacecraft, by far the most successful planet-hunting telescope in history, isn’t coming back.

Astronomers have recently discovered a massive exoplanet, Kepler-139f, hidden within a known star system. This Neptune-sized ...

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The Kepler spacecraft lost the second of four wheels that control the telescope's orientation in space, NASA said Wednesday, May 15, 2013.