Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

"The new model can account for both structure formation and stability, and the key observational properties of the expansion of the universe at large." ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s matter. The rest is mysterious dark matter. But even that modest slice didn ...

Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

"Milky seas” are one of the rarest reported forms of bioluminescence. A new scientific database may finally reveal the ...

Learn how through a process known as molecular hydrogen cooling, stars may be able to form in dark matter halos under 10 ...

There’s more to the universe than meets the eye, he found. His studies led astronomy to the dark side, changing our view of what’s out there.

It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study ...

The exquisite map of our galaxy it assembled has enabled scientists to better understand the galaxy's spiral structure, ...

A whole universe of hidden galaxies lies just beyond what the eye can see. Thanks to a new generation of space telescopes, ...

Astronomers have at last identified what’s believed to be the edge of the Milky Way galaxy ... have linked the boundary of the underlying dark matter distribution to the observable stellar ...