Checking the UV index is important for anyone planning outdoor activities to protect against strong ultraviolet rays.

China's Tianwen-2 sample-return mission is well on its way to its target, an asteroid called Kamo'oalewa. The spacecraft left Earth in May 2025 and should return in late 2027 with samples of a space ...

Tianwen-2 asteroid orbit insertion at quasi-satellite Kamoʻoalewa is set for June 7, days away, after amateur radio teams in ...

When it comes to understanding Earth and our changing environment, space is the place. Not only does it give us an overall ...

A study challenges the lunar origin of the asteroid Kamoʻoalewa and points to a different and surprising origin.

A young red dwarf can look calm from a distance. But buried in its light may be the chemical remains of a wrecked world.

A change of milliseconds seems insignificant, but it can cause problems for our clocks, GPS and navigation apps, and ...

Some 2,200 kilometers beneath our feet lies the outer core, a molten layer of rock that moves constantly. This rotation creates the planet’s natural magnetic field. For decades, scientists had ...

The most impressive feature on Mercury is the Caloris Basin, a vast, multi-ringed crater over 800 miles across, which is ...

Using data from the Webb space telescope, a team of researchers is suggesting that Neptune’s moon Nereid is the only survivor ...

Researchers at Carnegie Institution for Science and Nanjing University published a study predicting that carbon and hydrogen ...

Stupid question, but …” is a weekly column answering the not-so-stupid questions that, at this point, we’re all too afraid to ...