A crater-rich dwarf planet named Ceres located in the main asteroid belt between the orbits of Mars and Jupiter was long thought to be composed of a materials mixture not dominated by water ice.

This fall, the Earth will have a temporary cosmic companion. Astronomers have discovered that a “mini moon" will orbit our ...

Orbiting our planet in a horseshoe-shape, the moon will eventually return to a heliocentric orbit, which is around the Sun.

Starting this Sunday, stargazers have a unique phenomenon to observe as a school bus-sized asteroid temporarily joins Earth's ...

Mini moons are just asteroids that get trapped between the Earth and the moon's gravitational pull, so they can't pass us by ...

Asteroids are ripe for mining. Some contain gold or platinum. Others could help make rocket fuel. When they're mini-moons, ...

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Earth captures second moon for a few weeks Asteroid 2024 PT5 part of the Arjuna asteroid belt Asteroid 2024 PT5 will not be ...

A small asteroid will join Earth's orbit around the sun for two months beginning Sunday, becoming a 'mini-moon.' ...

Starting today, a newly discovered asteroid, 2024 PT5, will accompany Earth as a "second moon" for two months. While it will ...

A SpaceX Crew Dragon spacecraft caught up with the International Space Station and moved in for docking Sunday.

The Earth has a new companion for the next 2 months! A passing asteroid named 2024 PT5 has become gravitationally tethered to ...