"There is little question that, with its daylight display and spectacular evening apparition in a moonless sky, Comet 2024 G3 ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

An unusual looking 33-foot-long object discovered orbiting Earth last year may have come from a surprising place.

The asteroid is about 33 feet (10 meters) across and poses no danger to Earth. It joins another known lunar asteroid ...

In the United States, funding for planetary defense has long had strong bipartisan support both inside and outside of ...

G3 has mesmerized astronomers and amateur skygazers for months as the world tried to spot the bright comet in the sky nearing its fatal encounter with the Sun.

Lee esta historia en español aquí. The near-Earth object was likely ejected into space after an impact thousands of years ago ...

Asteroid 2024 PT5 was discovered by Nasa's Asteroid Terrestrial-Impact Last Alert System (ATLAS). Scientists believe that the ...

The sun’s light exerts a tiny force called “solar radiation pressure” on objects in space. Lightweight human-made debris, ...

A small asteroid named 2024 PT5, once hailed as Earth's temporary second moon, might have originated from our very own Moon.