News tagged with massive galaxy

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Where do supernovae come from?

(PhysOrg.com) -- Supernovae, the explosive deaths of massive stars, are among the most momentous events in the cosmos because they disburse into space all of the chemical elements that were produced inside ...

Sep 17, 2010 4.2 / 5 (10) 3 | with audio podcast

A 'Rose' made of galaxies

(PhysOrg.com) -- In celebration of the twenty-first anniversary of the Hubble Space Telescope's deployment in April 2011, astronomers at the Space Telescope Science Institute pointed Hubble's eye to an especially ...

Dec 21, 2011 4.6 / 5 (9) 0

Image: The NGC 5194 spiral galaxy

The Whirlpool Galaxy, also known as M51 or NGC 5194, is one of the most spectacular examples of a spiral galaxy. With two spiral arms curling into one another in a billowing swirl, this galaxy hosts over ...

Jan 28, 2014 5 / 5 (8) 0

In a Galaxy Far, Far Away...

(PhysOrg.com) -- Astronomers have published the discovery of the farthest known object in the cosmos: a star that exploded when the universe was only 630 million years old -- only 4.6% of its current age. ...

Nov 06, 2009 4.9 / 5 (8) 38

Pan-STARRS finds a 'lost' supernova

(Phys.org) —The star Eta Carinae is ready to blow. 170 years ago, this 100-solar-mass object belched out several suns' worth of gas in an eruption that made it the second-brightest star after Sirius. That ...

Mar 07, 2013 4.8 / 5 (8) 1 | with audio podcast

The murmur of a monster

The Andromeda galaxy is the nearest large galaxy to our Milky Way. Like the Milky Way, it has a spiral-arm structure with a massive black hole at its nucleus. Unlike the Milky Way, however, its black hole ...

Feb 28, 2011 3.9 / 5 (9) 9

Ultra-luminous x-ray sources

(PhysOrg.com) -- An ultra-luminous X-ray source (ULX) emits more radiation in the X-rays than do a million suns at all wavelengths. ULXs are rare: Most galaxies, including our own Milky Way, have none, and ...

Mar 19, 2012 5 / 5 (7) 1 | with audio podcast