Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

Our solar system's journey around the center of the Milky Way takes it through varying galactic environments, and one may ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

Millions of years ago, our Solar System traveled through a densely populated galactic region and was exposed to increased interstellar dust.

Milky Way photography can yield some stunning shots from here on Earth. But what if you had a vantage point at some 400km ...

This stunning photo was taken on January 29, 2025, from 265 miles (425 km) above the Pacific Ocean. Pettit, a seasoned ...

At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

Learn more about this new form of dark matter, which may positively charge hydrogen clouds.

"If a massive star were to explode as a supernova close to the Earth, the results would be devastating for life on Earth," said Nick Wright, an astrophysicist at Keele University in the United Kingdom ...

Recent science developments include the launch of NASA's SPHEREx telescope to explore the universe's origins, discoveries of ancient human fossils in Spain, a postponed NASA-SpaceX astronaut swap, and ...