The new discovery of six alien planets orbiting a sunlike star may be only a small part of the data released Wednesday from NASA's planet-hunting Kepler mission, but it is significant as the most ...

Explore Kepler observatory discoveries revealing a unique solar system of six tightly packed planets orbiting a sun-like star. None of them is what I would call precisely earth-like -- they're all ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

When NASA scientists began planning the Kepler mission, humans didn’t know of a single planet outside of our solar system. But by the time the roving space telescope retired, on October 30, it had ...

Your support goes further this holiday season. When you buy an annual membership or give a one-time contribution, we’ll give a membership to someone who can’t afford access. It’s a simple way for you ...

It’s finally happening. NASA has announced that its Kepler telescope may have seen its last exoplanet, as the spacecraft has now all but run out of fuel. The rest of this article is behind a paywall.

Researchers used data from NASA's planet-hunting Kepler space telescope to discover an eighth planet orbiting a star known as Kepler-90. The planet, dubbed Kepler-90i, is a hot, rocky planet that ...

Astronomers have discovered a third planet in the Kepler-47 system, securing the system's title as the most interesting of the binary-star worlds. Using data from NASA's Kepler space telescope, a team ...

NASA's Kepler spacecraft, patiently measuring the light of distant suns to find the tell-tale dimming caused by the passage of unseen planets, has discovered a solar system 210 light years from Earth ...

NASA’s Kepler mission scientists have discovered a new planetary system that is home to the smallest planet yet found around a star similar to our Sun. The planets are located in a system called ...

If you think it’s hard to be in a stable orbit around one star, think of how hard it must be to maintain an orbit around two. Binary star systems are the most common type of star system we have found.

Astronomers using data from NASA's Kepler mission have discovered a tiny solar system consisting of a single red dwarf star, known as KOI-961 and three planets which are 0.78, 0.73 and 0.57 times the ...