Astronomers used the Two-meter Twin Telescope to catch a "see-you-soon" image of the departing asteroid 2024 PT5.

Earth has a temporary, tiny companion. While not quite a "mini moon," since it will never be captured by Earth's gravity, ...

A waning crescent moon will creep closer and closer to Spica until the star's light is extinguished in the blink of an eye on ...

For about two months, Earth had a temporary second moon from an asteroid that scientists believe originated from our only ...

See how telescopes capture the cosmos. ExtremeTech explains the science behind lenses and space exploration. Start exploring ...

Observe the moon and planets up close with this reflector telescope from Celestron — now $246.49 at Amazon for Black Friday.

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins ...

The moon and Mars will share a close approach tonight (Nov. 20) during a conjunction as the two visit the Cancer ...

Earth is saying goodbye to an asteroid that has been a "mini-moon" of sorts since late September, when it joined the planet's ...

Editor's note Nov 22. — It's labeled as a Black Friday deal, but it was $30 cheaper yesterday. Save $30 on this travel scope ...

A mini moon that will bid farewell to Earth soon may in fact be a small hunk of the big moon — the one that has loomed far ...