When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

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 ...

A renowned physicist believes he's cracked the mystery of where a giant unidentified object hurtling through our solar system came from. Harvard physicist Avi Loeb and student researcher Shokhruz ...

The Asteroid Terrestrial-impact Last Alert System, better known as ATLAS, detected a fast-moving object entering our solar ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." Astronomers have discovered a massive new solar system body located ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...