It's out of this world. Or, more accurately, this solar system.On July 1, astronomers discovered an object near the orbit of ...

M. McClure et al./Cover Images Astronomers have spotted the birth of a new solar system for the very first time ever. Using ...

A rocky planet with a 24-hour orbit and an ice giant that takes five years to complete its orbit have been detected orbiting ...

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun.

Astronomers have observed, for the first time, the earliest stages of planet formation around a young star named HOPS-315, located 1,300 light-years away. Using the James Webb Space Telescope and ALMA ...

China's Tianwen 2 probe has captured striking pictures of home as it heads out to a near-Earth asteroid to collect samples.

The space rock came as close as within 4.15 million miles from our planet, according to NASA's Jet Propulsion Laboratory.

A 54-pound Martian meteorite, the largest ever discovered on Earth, sold for $5.3 million at Sotheby’s. Learn about its ...

The hunt for potentially habitable rocky planets in our galaxy has been the holy grail of exoplanet studies for decades.