The atmosphere, a thin veil of molecules enveloping Earth, reaches about 20 miles (32 kilometers) above the planet's surface.

"This is a promising sign that there continues to be new and exciting avenues to explore tidal disruption events and use them as probes of supermassive black holes." ...

Galactic gravity can dramatically impact wide binary stars, pushing them towards unexpected mergers or collisions. The ...

Over 40 stars in a galaxy billions of light-years away were photographed, offering a glimpse into an era when the universe ...

The research group observed a galaxy nearly 6.5 billion light-years from Earth; when the universe was half its current age.

Pictures show how the stars look during a period known as the cosmic noon - the middle ages of the universe when the most ...

There are limits to what we can see across the gulf of space and time separating us from the early Universe. Light that ...

About 430 million light years from Earth, in the Leo constellation, a new ultra-diffuse galaxy has been discovered to be under formation at the end of the tidal tail, a long, thin stream of stars and ...