Siddharth Patel, a 12-year-old who lives in London, Ontario (west of Toronto), spotted two possible asteroids in September as ...

A new quasi-satellite, 2025 PN7, has been discovered, joining a group of asteroids that orbit the Sun alongside Earth. These ...

Hiding in the blinding glare of our own Sun, astronomers have spotted a new cosmic speedster. The asteroid, called 2025 SC79, ...

The universe has quasi-moons, mini-moon, and moonlets, but no official definition of what counts as a moon.

The discovery of quasi-moon PN7 has caused a stir on social media. A University of Oregon astronomy professor explains. what ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

Technically, it's not a real moon. It's what scientists call a quasi-moon—a space rock that doesn't orbit Earth directly but ...

The asteroid is of a similar size as the one that exploded over Chelyabinsk in 2013. The Hayabusa2 mission is facing a new challenge after observations showed the asteroid it is going to rendezvous ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically ...

Scientists at the Sandia National Laboratories in New Mexico are testing a new method of asteroid tracking using the heliostat mirrors at concentrated solar farms. Though these mirrors usually sit ...