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 ...

The vast majority of matter is dark – invisible until it is detected only through its gravitational effects. The newly discovered object could be a clump of dark matter, or it could also be a compact, ...

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 ...

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 ...

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 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 ...