‘Cosmic Glitch’ could explain why gravity acts differently across the Universe
Einstein’s theory of gravity may behave slightly differently across distances of billions of light-years, with gravity appearing about…
Astronomers Think They’ve Found the Best Evidence for Dark Matter Yet
Dark matter, the elusive, invisible stuff that astronomers say constitutes roughly 85% of the universe’s mass, doesn’t interact…
A beam of light can cross the entire universe in no time at all
A photon can cross a billion light-years while accumulating no elapsed time along its path. Special relativity links…
A SpaceX Falcon 9 rocket stage will hit the Moon in the coming days
ⓘ NASA – Unsplash An image showing the Moon. In the coming days, the upper stage of a…
Fast blue optical transients still defy explanation
Sky surveys keep catching a kind of cosmic explosion that astronomers can’t explain. They call them fast blue…
This Star Is Racing Around the Milky Way’s Black Hole at 8% the Speed of Light
Illustration of a sunlike star passing very close to a supermassive black hole. Credit: ESO, ESA/Hubble, M. Kornmesser…
A Powerful Cosmic Accelerator Has Been Confirmed in the Milky Way
NASA’s Fermi telescope detected GeV gamma rays from LHAASO J1912+1014u, helping confirm it as a proton PeVatron. The…
Diffuse puffs of “missing” matter surround most galaxies | MIT News
Stars and galaxies make up much of the universe’s ordinary, observable matter. But for decades, scientists have wrestled…
New Black Hole Theory Solves a 50-Year-Old Problem
Illustration of a black hole that is growing in response to an influx of energy. New research from…
Decades-Old Dark Matter Explanation Fails Its Most Direct Test Yet
A decades-old dark matter claim is facing a decisive new challenge. The result clears the way for future…