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

About 4.6 billion years ago, our corner of space was basically just a boring cloud of gas and dust floating […] ...

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 ...

Scientists discovered that liquid water once flowed on the asteroid that spawned near-Earth asteroid Ryugu more than a ...

One of the studies, published in the journal Nature Astronomy, shows that ice inside the parent asteroid melted and reacted with dust, forming the minerals that now make up about 80% of Bennu. Certain ...

Over four billion years ago, the solar system was a wild and dangerous place. Swirling clouds of dust and gas slowly turned into the planets we know today.

Astronomers have discovered the raw ingredients of planets orbiting two infant stars, offering a glimpse into how new worlds ...

The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.

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 ...

NASA is gearing up to launch the Interstellar Mapping and Acceleration Probe (IMAP), a mission aimed at exploring the ...

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object cruises toward the sun.