If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

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

Using two infrared space telescopes and a 23-year gap, scientists may have spotted a mysterious, slow-moving object beyond ...

The possibility of Planet Nine being out there way beyond Pluto has always excited astronomers. They have now found one body ...

A new look through decades-old data has unveiled some of the most compelling evidence yet of a hidden ninth planet in the far ...

Vedic astrology intertwines Lord Vishnu's avatars with the nine planets, revealing profound influences on life's aspects.

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

A Falcon 9 rocket launched SpaceX 's Starlink 6-75 mission Thursday night (May 1) from Cape Canaveral Space Force Station ...

Catch some morning meteors, see the Moon reach First Quarter, and watch Mars visit the Beehive in the sky this week.

A Soviet-era spacecraft meant to land on Venus in the 1970s is expected to soon plunge uncontrolled back to Earth.

Yes, give us human beings credit. In our relatively brief history, it’s no small thing to have come up with two different ways of thoroughly devastating ...

There's disappointment for astronomers as the newly-discovered bright green comet appears to have disintegrated ...