The odd nature of 3I/ATLAS led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything that ...

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a ...

The near-Earth asteroid Bennu contains stardust that is older than the solar system and clues about its violent history, ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

The European Space Agency-led Solar Orbiter mission has split the flood of energetic particles flung out into space from the sun into two groups, tracing each back to a different kind of outburst from ...

Astronomers have spotted 3I/ATLAS, just the third interstellar object ever seen in our solar system. Bigger, faster, and possibly far older than ‘Oumuamua or Borisov, this icy traveler could help ...

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...