A violent collision with the hypothetical planet Theia may have delivered Earth’s water and set the stage for life.

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than ...

Scientists have shown that Earth’s basic chemistry solidified within just three million years of the Solar System’s formation ...

Scientists have discovered methane gas on the dwarf planet Makemake, a finding that has surprised astronomers studying the outer solar system.

Using JWST, astronomers uncovered auroras, exotic clouds, and storms on a blazing rogue planet. Brilliant aurora-like ...

"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...

Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to have gobbled up an icy world akin to the dwarf planet Pluto, a finding with ...

Chrysalis, a 36-mile rotating space habitat, plans to take 2,400 people to Alpha Centauri in approximately 400 years.

Saturn, the jewel of the solar system, has returned to the night sky. The ringed planet rises in the east just as the sun ...

University of Warwick astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being ...

A new study warns of an undiscovered population of asteroids that could strike Earth with little to no warning.