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

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

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

LYNCHBURG, Va. (WSET) — If you're trying to get a beautiful look at the planets in our solar system, you're in luck. Between February 25 and February 28, all seven planets in our solar system will be ...

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

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

NASA spotted a new moon almost at the border of our solar system. Back in 1986, a theory came up that this cosmic body could ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

Astronomers have confirmed 6,000 exoplanets beyond our solar system, with thousands more awaiting verification, marking a ...