While these are the most abundant type of world found by Kepler, our own solar system does not boast such a planet. Intriguingly, while similar in size and brightness to the Sun, Kepler 452b’s ...

The newly discovered planet, which NASA has named Kepler-452b, is believed to be 6 billion years old -- making it about 1.5 billion years older than the Earth and our sun.

AMES, Iowa – An international team of astronomers has used nearly three years of high precision data from NASA’s Kepler spacecraft to make the first observations of a planet outside our solar system ...

Scientists announced in a Thursday NASA press conference the discovery of Kepler-452b, a planet more similar to Earth than any ever discovered.

Kepler 452b, often called Earth’s “cousin,” has fascinated scientists and space enthusiasts alike for its remarkable potential to support life. This video explores why up to 94% of the ...

Recent research suggested the first and only moons seen around planets outside the solar system didn't actually exist; now, the scientists who initially found them are back to defend their discovery.

NASA’s Kepler observatory should be able to detect planetary moons – yet to be discovered – formed by far-away planetary collisions outside our Solar System, research by Amy Barr of the ...

Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.