Black holes that turn matter into energy could explain dark energy and answer two other cosmic questions. Now, the challenge ...

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Astronomers have discovered a new type of cosmic object: a gas-rich cloud about 14 million light-years away from our planet that could help illuminate the mysteries of the dark universe. Nicknamed ...

We have not been able to detect dark matter yet, even though there are many aspects of the universe that suggest the existence of invisible matter. In one new theory, it is possible that dark matter ...

Now physicists from the University of Washington are taking a big swing at answering that question. All matter exerts gravitational force. The more mass the object has, the greater the force. Yet, a ...

1. What Are Fermi Bubbles? No, this is not a rare digestive disorder. The bubbles are massive, mysterious structures that emanate from the Milky Ways center and extend roughly 20,000 light-years above ...

Last year, our most detailed map of the universe yet suggested our understanding of dark energy has been wrong for decades. The shock result is reigniting the search for a better cosmic story ...

Prologue: From myth to reality: Astronomy : the endless frontier ; Charting and modeling the heavens ; Copernicus : "the last of the Greek cosmologists" ; Galileo : a new approach to mechanics and ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...

"Dark stars" could help solve three seemingly disconnected mysteries that emerged at cosmic dawn — mysteries recently discovered by the James Webb Space Telescope. The puzzles include the surprising ...