jeudi 13 décembre 2012

Giant Stellar Nursery











NASA - Hubble Space Telescope patch.

Dec. 13, 2012


Stars are sometimes born in the midst of chaos. About 3 million years ago in the nearby galaxy M33, a large cloud of gas spawned dense internal knots which gravitationally collapsed to form stars. NGC 604 was so large, however, it could form enough stars to make a globular cluster.

Many young stars from this cloud are visible in this image from the Hubble Space Telescope, along with what is left of the initial gas cloud. Some stars were so massive they have already evolved and exploded in a supernova. The brightest stars that are left emit light so energetic that they create one of the largest clouds of ionized hydrogen gas known, comparable to the Tarantula Nebula in our Milky Way's close neighbor, the Large Magellanic Cloud.

Notes:

The Hubble Space Telescope is a project of international cooperation between ESA and NASA.

ESA Hubble website: http://www.spacetelescope.org/

NASA Hubble website: http://hubblesite.org/

Image, Text, Credits: NASA / ESA.

Cheers, Orbiter.ch