By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our understanding of how the cosmos is built.

Scientists analyzed data from 7 million galaxies and stumbled upon a missing piece of the cosmic puzzle. Thanks to the ...

As the Hubble Space Telescope approaches 35 years since its launch, marking over three decades of incredible images of the universe and science, NASA and its partner, the European Space Agency, are ...

A new approach suggests that a tiny spin of the universe throughout space might reconcile those conflicting numbers. If the ...

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

A new study published in the Monthly Notices of the Royal Astronomical Society suggests that the universe may be rotating — albeit extremely slowly ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

The halo is more extended that astronomers originally thought, and contains enough hydrogen gas to resolve the problem of the ...

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t account for half—until now.

Scientists found the universe's missing baryonic matter as invisible hydrogen outside galaxies using a method called 'stacking' ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?