Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually. In a new study, planetary scientist Julio A. Fernández of Uruguay’s Universidad ...

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

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

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 ...

According to NASA, "Asteroid 2024 YR4 is now too far away to observe with either space or ground-based telescopes. The space ...

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

The 2025 PN7 is Earth's newly confirmed quasi-moon, a tiny asteroid (approx. 19m wide) that orbits the Sun in sync with our ...

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

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet ...

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 ...

The Asteroid 2025 PN7 will orbit near the Earth as a quasi-moon until 2083, when it will drift away at high speed after ...

Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually. In a new study, planetary scientist Julio A. Fernández of Uruguay’s Universidad ...