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Dark matter continues to challenge astronomers as they work to solve the mystery of this so-far-unseen material that permeates the Universe. It's not that the stuff doesn't exist....
Dark matter is known to make up roughly 85% of all mass in the universe, as evidenced by the way galaxies spin and how galaxy clusters are held together under gravity. Yet despite...
The first globular cluster stellar stream found beyond the Milky Way shows that these faint structures can be used to study dark matter in other galaxies. A faint ribbon of stars s...
Scientists have discovered a rare star formation hidden in a distant galaxy, unlike anything seen before beyond the Milky Way. What’s more, the discovery offers a brand new way to...
A ghostly ribbon of stars winding around a faint galaxy 115 million light-years away is giving astronomers a rare new way to trace one of the universe’s most elusive ingredients: d...
Why giving dark matter an additional attractive force does not necessarily produce “clumpier matter.” Dark matter shapes galaxies and the large structure of the Universe through gr...
If not, at the very least an extremely strange cosmic phenomenon.
Dark matter is the invisible stuff that accounts for roughly 85% of the mass in the universe, and for decades, physicists have been trying to figure out what it's made of. Now an e...
Galaxies can create many of the same stellar stream distortions that astronomers have looked to as possible signs of dark matter. Astronomers have long hoped that gaps, bends, and...
Composing some 85% of the universe's total mass, dark matter betrays its presence only through gravity, unlike ordinary matter. Yet through new research published in Physical Revie...
A jet erupting from a distant supermassive black hole-powered blazar is being gravitationally lensed by an unseen clump of dark matter, and that could tell us about the source of c...
Stars and galaxies make up much of the universe's ordinary, observable matter. But for decades, scientists have wrestled with a cosmic conflict: There should be much more.
Our picture of the Universe is getting darker.ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, subscribe here.
Astronomers have discovered that the jet of a distant blazar has been gravitationally lensed by an unseen source of dark matter. Led by Silke Britzen at the Max Planck Institute fo...
In the image above, a faint trail of stars can be seen stretching across the galaxy. These structures, known as globular cluster stellar streams, are coherent stellar structures th...
New research suggests that if dark matter is composed of "dark photons," it would not have heated the early cosmos like scientists thought.
Cross-disciplinary research at Perimeter Institute and University of Maryland shows that dark photons could be lurking in more places than previously thought.
Counterintuitive finding could help us better understand how highly energetic galactic activities impact the formation of cosmological structures The post Fast radio bursts reveal...
Researchers spotted an unusual gamma-ray signal in three galaxy clusters, which may be a telltale sign of dark matter – or some even more exotic phenomenon
Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could b...
Brief but powerful flashes of radio waves are aiding astronomers' quest to find and map cosmic gas. The post A New Way to Map the Universe's Missing Matter appeared first on Sky &a...
Most of the matter in the universe is dark matter, but for decades physicists haven’t been able to directly observe it – that may have just changed
The geometry of a hidden dimension may naturally explain dark matter resonance and its elusive behavior. Every galaxy appears to carry far more mass than telescopes can see. That i...
Dark matter is an invisible substance that is said to bind the universe; scientists may have found new signs of it.
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