A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that appears to orbit Earth. Quasi-moons are asteroids that orbit the sun but appear to orbit Earth from our perspective.

Around 66 million years ago, the reign of the dinosaurs came to a fiery end. An asteroid about 7 miles (12 kilometers) wide, ...

Contrary to online rumors, Earth still only has one true moon, but astronomers have discovered a so-called 'quasi-moon.' Here ...

Have you heard about Asteroid Apophis? It's like the rockstar of space—cool name, big impact! This bad boy has been causing a ...

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

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...

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 reason people might think Earth has a second moon is due to a celestial body named 2025 PN7 that was spotted in August by ...

As the mysterious interstellar comet 3I/ATLAS speeds towards its perihelion on 29 October 2025, NASA's Asteroid ...

You might have seen an interesting phrase popping up in your social media feeds lately: “Chiron is in retrograde.” If you’re anything like me, you’ve never heard of Chiron before – and I’m a ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The dinosaur-killing asteroid that struck Earth around 66 million years ago was huge — around 7 ...