WASHINGTON — For the first time ever, astronomers have confirmed the existence of a "failed galaxy," a massive, starless ...

It's been named Cloud-9, and it's a mysterious object about 14.3 million light-years away, near the spiral galaxy M94, which ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

Although scientists have long predicted the existence of these elusive objects, confirmation only came after Hubble observations showed the cloud to be completely star-free.

New research puts forward compelling new evidence that dark matter interacts with cosmic "ghost particles" called neutrinos.

Scientists may have "seen" dark matter for the first time, thanks to NASA's Fermi gamma-ray space telescope. If so, this would mark the first direct detection of the universe's most mysterious ...

When it comes to understanding the universe, what we know is only a sliver of the whole picture.

Now is a surreal time to be a dark matter researcher. Even as research funding is being cut by governments around the world, dark matter remains one of the biggest and most exciting open ...