Everything comes in twos this month: two outer planets reaching full opposition to the sun, providing optimum viewing ...

A pair of giant planets circling a star more than 1,100 light-years from Earth looks almost too bloated to be real. Each world is about the size of Jupiter. Yet both are far lighter than expected, ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has two planets that orbit their star in a unique style, like an old-fashioned ...

Add Yahoo as a preferred source to see more of our stories on Google. And yes, there is a difference between the two celestial sights. "Planetary alignment is an astronomical term used to describe the ...

Astronomers call it KOI-134, and it's a star located 3,747 light-years away from Earth. Despite the huge distance that separates us, we've known it was there for more than a decade now, ever since the ...

May The Fourth, a.k.a. Star Wars Day, may have come and gone, but with it came an announcement from a team of researchers that found 27 potential planets orbiting two stars, just like Luke Skywalker’s ...

WASHINGTON, April 18 (Reuters) - In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes at two suns setting above the horizon on his desert planet Tatooine.