A new report released April 1 by the European Space Agency sheds light on space pollution surrounding our planet — how bad ...

According to new simulations, many, even most, planets get ejected from their star early in their history Star Trek ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

"There really is something very different about how these giant planets form versus how small planets like Earth form." ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Dubbed "Planet Nine," this hypothetical celestial body is believed to influence the orbits of distant, small objects beyond ...

Dune. Star Wars. Alien. Science fiction movies love alien worlds, and so do we. But how do scientists find planets outside ...

Only the three stars that make up the Alpha Centauri system lie closer to us. The planets newly discovered around Barnard’s ...

The different speeds of the planets mean that, on occasion, several of them can be roughly lined up on the same side of the Sun. From Earth, if the orbits line up just right, we can see multiple ...

The team found that larger planets on non-circular orbits are more likely to have grown in more turbulent home systems. Smaller planets, it was revealed, tended to have nearly circular orbits ...