News tagged with dark matter

Dark matter core defies explanation

(PhysOrg.com) -- Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could ...

Mar 02, 2012
4.9 / 5 (27) 87 | with audio podcast

Mystery deepens around dark core in cosmic collision

Five years ago, San Francisco State researcher Andisheh Mahdavi and his colleagues observed an unexpected dark core at the center of Abell 520, a cosmic "train wreck" of galaxy clusters. With new space-based telescope observations, ...

Mar 02, 2012
4.7 / 5 (13) 17 | with audio podcast

Astronomers find a dark matter galaxy far, far away

(PhysOrg.com) -- A faint “satellite galaxy” 10 billion light years from Earth is the lowest-mass object ever detected at such a distance, says University of California, Davis, physics professor Chris ...

Jan 18, 2012
4.3 / 5 (10) 8 | with audio podcast