Sixty-six million years ago, life on Earth was paid a visit by a very unwelcome guest: the Chicxulub impactor, an asteroid ...

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

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 ...

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

Scientists have confirmed the discovery of a new quasi-moon, 2025 PN7, a small asteroid that will shadow Earth’s orbit for ...

Astronomers have discovered a small asteroid that has been quietly accompanying Earth on its journey around the sun for the ...

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

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

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...

A massive crater hidden beneath the Atlantic seafloor has been confirmed as the result of an asteroid strike from 66 million ...

Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...