Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

Two enormous space rocks have slammed together in a nearby planetary system, and for the first time astronomers have watched ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration shows a comet barrelling out of the solar system after an encounter with Saturn.

The outermost reaches of our solar system are a strange place–filled with dark and icy bodies with nicknames like Sedna, Biden and The Goblin, each of which span several hundred miles across. Two new ...

Astonishingly, not one but two interstellar asteroids have been detected entering our solar system since 2017. The first was given the Hawaiian name ‘Oumuamua, meaning ‘messenger from afar,’ after its ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

Our solar system is made up of the sun, the eight known planets and the dozens of moons that circle those planets. But then there are innumerable asteroids, comets and dwarf planets wandering around.

In 2006, the International Astronomical Union (IAU) voted on the definition of a planet. Famously, Pluto no longer met the criteria and was demoted to a dwarf planet. Things have been a bit of a mess ...

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 ...