News tagged with cluster galaxies

For the Milky Way, it's snack time

Using the Sloan Digital Sky Survey, researchers have discovered a band, or stream, of stars believed to be the remnant of an ancient star cluster slowly being ingested by the Milky Way, Earth's home galaxy.

Oct 25, 2012 4.6 / 5 (5) 1

VISTA views a vast ball of stars

(Phys.org) -- A new image of Messier 55 from ESO's VISTA infrared survey telescope shows tens of thousands of stars crowded together like a swarm of bees. Besides being packed into a relatively small space, ...

May 09, 2012 3.7 / 5 (6) 15 | with audio podcast

A galactic crash investigation

(PhysOrg.com) -- A team of scientists has studied the galaxy cluster Abell 2744, nicknamed Pandora’s Cluster. They have pieced together the cluster’s complex and violent history using telescopes ...

Jun 22, 2011 4.8 / 5 (4) 5 | with audio podcast

Gamma-ray emission from Terzan 5

(PhysOrg.com) -- The H.E.S.S. telescope system in Namibia discovered a new source of very-high-energy gamma-rays from the direction of the globular cluster Terzan 5. Being very likely located in the outer ...

Jun 24, 2011 4.8 / 5 (4) 2 | with audio podcast