Certain extreme planets are called ultra-short period objects if they're very close to their stars and orbit them in mere hours, like K2-22b.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Known as the "Parade of Planets," the celestial event will feature appearances from Mars, Jupiter, Uranus, Venus, Neptune and ...

Scientists from NASA and other institutions who have been analyzing the Bennu asteroid sample that returned to Earth last ...

NASA scientists found amino acids, key minerals, and nucleobases for DNA in samples from the OSIRIS-REx asteroid mission.

All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that ...

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

After graduating from UVA in 2013 and completing her doctorate in planetary science from the University of Arizona in 2019, ...

Planetary Parade A rare alignment of Venus, Saturn, Jupiter, Mars, Uranus, and Neptune is visible this month and into early ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.