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

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

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

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

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

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

Asteroid 2025 SC79 is the size of a skyscraper and moves around the solar system at a record-breaking speed. Astronomers ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

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 ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...