New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

Root explores how Earth’s gravity field is constantly changing and what these variations reveal about our planet ...

"I think these are not far-out type of ideas; they are not really futuristic ideas that we are talking about." ...

Two robots on opposite sides of Mars have each turned a slow, patient circle and photographed everything around them, producing a matched pair of 360-degree panoramas separated by 2,345 miles of ...

Artist's illustration of two black holes ringing. (Maggie Chiang for Simons Foundation) Of all the objects in the Universe, ...

NASA's Nancy Grace Roman Space Telescope is poised to make a major leap in the hunt for worlds outside our solar system, ...

For all the ambition packed into humanity's plans for Mars colonies, lunar bases, and permanent off-world settlements, one ...

A retro-futuristic space truck and a nimble crustacean on wheels just won a competition to deploy on a future NASA Artemis ...

Fewer than 30 exoplanets have ever been photographed directly, their faint light teased out from the overwhelming glare of ...

It's being billed as the biggest - and most anticipated - flotation in stock market history. And it's set to make founder ...

A rewrite of quantum mechanics that includes the force of gravity could finally achieve one of physicists’ biggest goals and ...

Airstrikes on Tehran earlier this year emitted a plume containing almost 30,000 tonnes of sulphur dioxide that reached Asian ...