Astronomy
A 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.
Cosmology
More Stories in Cosmology
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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.
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CosmologyEinstein’s theory of general relativity unveiled a dynamic and bizarre cosmos
Albert Einstein’s theory of general relativity foretold space-bending beasts, cosmic shock waves and mysterious forces.
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SpaceDark matter clumps in galaxy clusters bend light surprisingly well
Cosmologists have found one more way to be confused by dark matter.
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CosmologyScientists can’t agree on how clumpy the universe is
A measurement of 21 million galaxies finds a level of clumpiness that disagrees with estimates based on the oldest light in the universe.
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Cosmology‘The End of Everything’ explores the ways the universe could perish
As Katie Mack explains in The End of Everything, the universe’s demise could be disastrously violent or deadly calm.