Cosmology
Scientists mapped dark matter around galaxies in the early universe
A technique used to reveal dark matter could also shed light on a disagreement about the clumpiness of matter in the cosmos.
Cosmology
More Stories in Cosmology
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CosmologyA century ago, Alexander Friedmann envisioned the universe’s expansion
Alexander Friedmann saw that Einstein’s equations predicted multiple cosmic scenarios, including a Big Bang.
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AstronomyA supernova’s delayed reappearance could pin down how fast the universe expands
“SN Requiem” should reappear in the 2030s and help determine the universe’s expansion rate.
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CosmologyAstronomers may have seen a star gulp down a black hole and explode
It took sleuthing through data collected by a variety of observatories to piece together the first firm evidence of a theorized cosmic phenomenon.
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Cosmology‘Flashes of Creation’ recounts the Big Bang theory’s origin story
In ‘Flashes of Creation,’ author Paul Halpern tells the story of George Gamow , Fred Hoyle and their decades-long sparring match about the Big Bang.
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SpaceVera Rubin’s work on dark matter led to a paradigm shift in cosmology
‘Bright Galaxies, Dark Matter, and Beyond’ tells the story of how astronomer Vera Rubin provided key evidence for the existence of dark matter.
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SpaceCosmic filaments may be the biggest spinning objects in space
Filaments of dark matter and galaxies, which can stretch millions of light-years, might help astronomers figure out the origins of cosmic spin.
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SpaceFast radio bursts could help solve the mystery of the universe’s expansion
Astronomers used fast radio bursts for the first time to measure the Hubble constant in hopes of ending the debate on the universe’s expansion rate.
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CosmologyPhysicists’ devotion to symmetry has led them astray before
If dark matter WIMPs are mythical, they join the ancient idea that the planets moved in circles.
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CosmologyThe dark matter mystery deepens with the demise of a reported detection
Early results from an experiment designed to replicate one that hinted that dark matter is made up of WIMPs came up empty-handed.