Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that ...

The Nancy Grace Grace Roman dream telescope, an ambitious NASA project for researching dark matter and also exoplanet, is ...

An international team of astronomers has discovered a new ghost galaxy, that does not contain dark matter.

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ...

NASA's Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct ...

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

NASA warns that dark energy could freeze the universe into darkness. Learn what the Big Freeze theory predicts for the cosmos ...

The infant universe's population of huge black holes could owe itself to ultralight dark matter, scientists say.

A new analysis of the sky has finally confirmed where the missing half of the Universe's visible matter has been hiding.

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