Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

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. Astronomers since then indeed have ...

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about ...

"This measurement of the planet population from planets somewhat larger than Earth all the way to the size of Jupiter and ...

"A planet orbiting not just a binary, but a binary brown dwarf, as well as being on a polar orbit, is rather incredible and ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

The boundless potential of astronomical discovery contrasts sharply with the backwardness and reaction promoted by Trump and ...

WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host star ...

A new study suggests we could be a step closer to figuring out if alien life is out there, trillions of miles away from Earth ...

The brown dwarf pair was first spotted years ago ... bodies can help us understand how conditions beyond our solar system may yield planets vastly different from our own, said study author ...