Astronomers have linked an X-ray flash discovered by the Einstein Probe to a known type of supernova with unusual features ...

Dark matter stellar stream science just extended beyond the Milky Way: archival Hubble images revealed Oyashio, the first ...

Astronomers using NASA's Hubble Telescope have identified the first globular cluster stellar stream outside the Milky Way, located in galaxy UGC 9050-Dw1.

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At the 2022 International Astronautical Congress in Paris, France, the University of Manchester and Breakthrough Listen (the initiative to find signs of intelligent life in the universe) announced a ...

Dark Energy is inferred based upon distance and other measurements which could have 10% errors. Measurements of the distance to extragalactic sources allow us to infer the major energy constituents of ...

The finding offers tantalizing clues in the ongoing quest to piece together the origins of ORCs—mysterious, ring-shaped radio signals from space. Reading time 2 minutes For lovers of cool astronomy ...

Astronomers may have spotted the first known planet in another galaxy. The potential world, called M51-ULS-1b, orbits both a massive star and a dead star in the Whirlpool galaxy, about 28 million ...

A research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With the existing observational ...