apr 102013
 
Planets and Debris Disk Found Around Retired Star

  ESA’s Herschel space observatory has provided the first images of a dust belt – produced by colliding comets or asteroids – orbiting a sub-giant star known to host a planetary system. Kappa Coronae Borealis, based on Herschel PACS observations at 100 μm. North is up and east is left. The star is in the center of the frame [continue reading]

mrt 272013
 
How To Build A Really, Really Big Star

  It takes a village, say researchers   Stars ten times as massive as the Sun, or more, should not exist: as they grow, they tend to push away the gas they feed on, starving their own growth. Westerhout 3 (W3) is a giant molecular cloud about 6200 light-years away in the Perseus Arm, one of the [continue reading]

mrt 202013
 
The Youngest Stars Ever Seen Discovered by Herschel

  Astronomers have found some of the youngest stars ever seen, thanks to the Herschel space observatory, a European Space Agency mission with important NASA contributions. Astronomers have discovered some of the youngest stars ever seen, surrounded by dense envelopes of gas and dust. A portion of the survey is shown here in two side-by-side images [continue reading]

mei 182012
 
Herschel reveals galaxy-packed filament

  A McGill-led research team using the Herschel Space Observatory has discovered a giant, galaxy-packed filament ablaze with billions of new stars. The filament connects two clusters of galaxies that, along with a third cluster, will smash together and give rise to one of the largest galaxy superclusters in the universe. A Star-Bursting Filament Image credit: [continue reading]

apr 112012
 
Herschel spots comet massacre around nearby star

ESA’s Herschel Space Observatory has studied the dusty belt around the nearby star Fomalhaut. The dust appears to be coming from collisions that destroy up to thousands of icy comets every day. Herschel Fomalhaut Fomalhaut is a young star, just a few hundred million years old, and twice as massive as the Sun. Its dust [continue reading]