An asteroid is labelled risky if it comes within 7.4 million kilometres and measures more than 85 metres across.

As the Moon reaches New, advanced observers can try photographing 3I/ATLAS while everyone can enjoy nebulae and more in the ...

The meteorite was discovered in Niger in November 2023 and is 70% larger than the next biggest piece of Mars recovered on ...

A building-sized asteroid named 2022 YS5 is making a close approach to Earth on July 17, and space agencies across the globe ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) ...

A huge asteroid, 2025 MA90 is hurtling through space at around 20,000mph and is set to pass by Earth later today, reaching as ...

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet Center of comet 3I/ATLAS on July 1, 2025.

Predicting the precise path of a new asteroid or comet is a complex affair; the more observations you have, the better you ...

NASA has discovered an interstellar comet that's wandered into our backyard. Luckily, it won't get near enough to be a threat ...