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

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

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

The Trump Administration quietly revealed it has futuristic technologies that literally bend time during a speech on 'the golden age of American innovation.' ...

In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

NASA’s Lucy spacecraft is set to fly by the asteroid Donaldjohanson on April 20 in a key rehearsal for its primary mission to ...

The detection of dark matter, the elusive type of matter predicted to make up most of the universe's mass, is a long-standing ...

How new dark matter could solve mystery about Milky Way - Telescopes have detected a mysterious glow of gamma rays ...

Astronomers have long been puzzled by developments in the 'central molecular zone' near our galaxy's core - but now, they ...

Published today in Nature, scientists at King’s College London, Harvard University, UC Berkley and others have shared the ...

The CMZ spans almost 700 light years and contains some of the most dense molecular gas in the galaxy. Over the years, ...