Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

For the first time, scientists have built a digital version of the Milky Way that follows the motion of individual stars, not ...

It's hard to imagine that someday, the Milky Way galaxy will cease to exist. Looking up at the stars, it feels as though Earth, and even the solar system that it belongs to, is infinite. But our sun ...

Simulating a billion years using previous best-resolution simulations would take almost 36 years of real computing time.

"The discovery of this stream highlights how much is still unknown about the life histories of galaxies, how the hidden ...

Astronomers have long puzzled over the cause of a mysterious “glow” of very high energy gamma radiation emanating from the ...