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4 juillet 2008 5 04 /07 /juillet /2008 16:13

Flap ... At what game God is he playing ?

Mais à quoi joue Dieu ? Et qui sommes nous, nous si petits, si faibles, face à ces débauches d'énergie ? 



Antennae Galaxies

This image of the Antennae galaxies is the sharpest yet of this merging pair of galaxies. During the course of the collision, billions of stars will be formed. The brightest and most compact of these star birth regions are called super star clusters.

The two spiral galaxies started to interact a few hundred million years ago, making the Antennae galaxies one of the nearest and youngest examples of a pair of colliding galaxies. Nearly half of the faint objects in the Antennae image are young clusters containing tens of thousands of stars. The orange blobs to the left and right of image center are the two cores of the original galaxies and consist mainly of old stars criss-crossed by filaments of dust, which appears brown in the image. The two galaxies are dotted with brilliant blue star-forming regions surrounded by glowing hydrogen gas, appearing in the image in pink.

The new image allows astronomers to better distinguish between the stars and super star clusters created in the collision of two spiral galaxies. By age dating the clusters in the image, astronomers find that only about 10 percent of the newly formed super star clusters in the Antennae will survive beyond the first 10 million years. The vast majority of the super star clusters formed during this interaction will disperse, with the individual stars becoming part of the smooth background of the galaxy. It is however believed that about a hundred of the most massive clusters will survive to form regular globular clusters, similar to the globular clusters found in our own Milky Way galaxy. The Antennae galaxies take their name from the long antenna-like "arms" extending far out from the nuclei of the two galaxies, best seen by ground-based telescopes. These "tidal tails" were formed during the initial encounter of the galaxies some 200 to 300 million years ago. They give us a preview of what may happen when our Milky Way galaxy collides with the neighboring Andromeda galaxy in several billion years.

Image Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)-ESA/Hubble Collaboration

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commentaires

Eglantine 09/07/2008 08:21

Aujourd'hui résultat du concours poésie sur quai des rimes. J'aime beaucoup ton poème. Bises.

busard 09/07/2008 13:08


Flap .. j'y go ... d'agneau bien sur !!!


Babou* 08/07/2008 23:05

Et si Dieu était le peintre de l'univers... pourquoi pas imaginer le jaillissement des couleurs rose, bleu, et une pointe de doré... tout cela en éclats lancés sur une toile noire... Un picasso des galaxies... Je suis d'accord avec ton interrogation : qui sommes nous face à cette débauche d'énergie?? Je m'envole de ton nid... qui me plait bien.

busard 09/07/2008 13:08


Flap ... quel peintre !!! .... bon vol babounette ...