After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

A ninth planet may exist beyond Neptune in the Kuiper Belt, a region populated by icy bodies that orbit the Sun.

It’s often called Planet X or Planet Nine. “If we find another planet, that is a really big deal,” said Malena Rice, an assistant professor of astronomy at Yale University. “It could ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

The search for Planet Nine, a hidden world beyond Neptune, is heating up as scientists prepare to use a powerful new telescope.

Scientists speculate if Planet Nine is a new planet or a primordial black hole. Discoveries could redefine our understanding ...

The race could come down to seven pivotal battleground states, and we might not know the winner tonight, so be patient and follow our live updates. 1️⃣ Planet Nine? Scientists say a growing number of ...

As NASCAR heads into its season finale, the series has also levied nine penalties for race manipulation in Martinsville.

Indiana University of Pennsylvania’s Cejka Planetarium in John J. and Char Kopchick Hall will host two programs during the ...

Though fans never got to see the crew of the U.S.S. Discovery visit Risa, the pleasure planet was mentioned in two different episodes of Star Trek: Discovery. In the season 1 episode "Context Is For ...

While delivering remarks at the Earthshot Prize Awards on Wednesday, Nov. 6, Prince William spoke nine African languages as a sign of respect to a continent he has previously said “has always held a ...