ESA’s orbiting X-ray observatory XMM-Newton has been used by a team of international astronomers to uncover part of the missing matter in the universe. 10 years ago, scientists predicted that about ...

Our universe is dominated by a mysterious matter known as dark matter. Its name comes from the fact that dark matter does not absorb, reflect or emit electromagnetic radiation, making it difficult to ...

How do you distinguish a galaxy from a mere cluster of stars? That's easy, right? A galaxy is a large collection of millions or billions of stars, while a star cluster only has a thousand or so. Well, ...

WASHINGTON, June 16 (Reuters) - The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a grand scale. And there is ordinary matter ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole. reading time 3 minutes Researchers compiled hundreds of astronomical ...

Theresa Fruth works for the University of Sydney. Most of the matter in the universe is missing. Scientists believe around 85% of the matter in the cosmos is made of invisible dark matter, which has ...

"The 'missing' matter may truly be lurking in hard-to-see threads woven across the universe." Astronomers have discovered a vast tendril of hot gas linking four galaxy clusters and stretching out for ...