If you thought planets only circled stars in neat, flat disks, think again. Scientists have uncovered compelling evidence for ...

For about a decade, he and other researchers have been trying to prove that the so-called "Planet 9" exists. So far, the only evidence has come from some oddities in the orbits of small Pluto-like ...

Astronomers using ESO’s Very Large Telescope have discovered a truly bizarre planet — one that orbits two stars at a perfect ...

A SpaceX Falcon 9 rocket launched the Starlink 12-17 mission Saturday night (April 12) from NASA's Kennedy Space Center ( KSC ...

SpaceX chalked up another human spaceflight Monday night, taking four civilians on a trip around the Earth that has never ...

An asteroid called 2020 CD3 was bound to Earth for several years before leaving the planet’s orbit in 2020 and another called 2022 NX1 became a mini-moon of Earth in 1981 and 2022 and will return ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is hidden in our solar... If Planet Nine is out there, this telescope ...