Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

It's named Eos, after the Greek goddess of the dawn, and contains approximately 3,400 solar masses worth of gas.

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

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

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

An international team of scientists led by a Rutgers University–New Brunswick astrophysicist has discovered a potentially ...

Scientists from Skolkovo Institute of Science and Technology, together with scientists from the University of Graz, ...

Pluto, which infamously lost its status as the ninth planet in 2006, is less than four billion miles away from the sun, sitting in the Kuiper Belt - a region in our solar system beyond Neptune ...

The Daniel K. Inouye Solar Telescope, the world's largest solar telescope, can see the sun in unprecedented detail. Here is ...

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