Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually.

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

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

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 ...

This quasi-moon is expected to remain in its current near-Earth orbit for about another 60 years before the gravitational tug ...

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

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

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 ...

Astronomers have identified 2025 SC79, a new asteroid with a remarkably fast 128-day orbit, placing it among the ...

Tianwen 2 will collect samples and deliver them back to Earth in late 2027, using a reentry capsule. Then the spacecraft will slingshot around our planet for another deep-space rendezvous: a visit ...

By early December, 3I/ATLAS will move away from the Sun’s vicinity, and its glare, and will be visible again in the Northern ...

PN7 has been a mysterious space traveler, shadowing our planet for decades undetected in our vast celestial world, until now.