A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Scientists have discovered a potentially star-forming cloud and called it "Eos ... a gas-filled cavity in space that surrounds the solar system. Despite its size and proximity, Eos had gone undetected ...

Solar Wave Squeezed ... TOI-1453: Sub-Neptune in System of Two Exoplanets Mar. 14, 2025 — Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away.

Stars whizzing by our solar system could cause more havoc than astronomers previously thought, from sending Pluto’s orbit haywire to forcing Mercury to fly into the sun – or even ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. By studying computer models and observing the creation of other star ...

Solar flares are intense bursts of radiation coming from the sun. They are the most powerful explosions in our solar system, according to NASA. The biggest solar flares are labeled as X-class flares.

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar ...