Material deep inside Earth — thousands of kilometres down, near the planet’s core — has undergone a mysterious shift. Is ...

A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our planet in a similar orbit for 60 years.

Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its momentum goes to the Moon. To put it another way, as the Moon's orbital momentum ...

Researchers in China have conducted the most thorough search yet for alien radio signals in the nearby TRAPPIST-1 system, which may harbor potentially Earth-like planets.

Mathematicians calculated where the planet might be based on its effects on Uranus, and astronomers searched for less than an ...

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's ...

With new telescopes coming online and fresh discoveries arriving almost weekly, the search is only accelerating. Each new world we find is more than a point of light somewhere in the great darkness.

TRAPPIST-1 is a red dwarf star located about 40 light years away that hosts seven Earth-sized rocky planets, with at least ...

It’s pretty amazing what we can see of our planet these days, isn’t it? For a long time, getting a good look at Earth from ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

Selecting the right spot to smash a spacecraft into the surface of a hazardous asteroid to deflect it must be done with great ...