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

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution ...

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

Documentary filmmaker Jeremy Corbell spoke with NBC News' Gadi Schwartz about a new video of an unidentified tic tac object ...

Researchers mapped a far-infrared landscape brimming with nearly 2,000 galaxies. There may be "hidden galaxies" lurking just out of sight.

Astronomers have reached deeper into the heart of a brilliant cosmic engine than ever before, using NASA’s Hubble Space ...

SPHEREx, NASA’s new space telescope, just opened its eyes to the universe and delivered its very first images from space.

The universe is vast and mysterious, with over 85% of its mass composed of an invisible substance known as dark matter.

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.

SPHEREx stands for the Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer.

Math and computer science researchers have long known that some questions are fundamentally unanswerable. Now physicists are ...