When a NASA scientist finally cracked open a cache of 50-year-old lunar soil, the expectation was to refine old models, not ...

For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This ...

We've known about the iconic Ring Nebula for nearly 250 years, but it's only now that astronomers have found a giant mystery ...

A NASA study shows that meteorites delivered only a small amount of water to Earth over the past four billion years.

A spectacular new image from the James Webb Space Telescope reveals intricate structures inside the Helix Nebula, where a ...

A rare iron meteorite has been found in the Sahara Desert, providing scientists a unique glimpse into the cores of ancient ...

A distant Sun-like star suddenly went dark for months, stunning astronomers who quickly realized something massive was ...

A stunning new image taken with the James Webb Space Telescope provides a closeup look a dying star and its irradiated ...

An epidemiology study finds variations in one gene, APOE, play a major role in determining the risk of Alzheimer’s disease.

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

Astronomers have observed a Sun-like star dim dramatically for nearly nine months after being obscured by a vast cloud of gas and dust. A huge cloud filled with vaporized metals has been spotted ...