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APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
The Antennae
Explanation: Some 60 million light-years away in the southerly constellation Corvus , two large galaxies collided . But the stars in the two galaxies, cataloged as NGC 4038 and NGC 4039 , don't collide in the course of the ponderous event , lasting hundreds of millions of years. Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation near the center of the cosmic wreckage . Spanning about 500 thousand light-years, this stunning view also reveals new star clusters and matter flung far from the scene of the accident by gravitational tidal forces. Of course , the suggestive visual appearance of the extended arcing structures gives the galaxy pair its popular name - The Antennae.
| Date | April 29, 2011 |
|---|---|
| Credit |
Image Credit & Copyright: Acquisition and data reduction - Andrey Oreshko (Elena Remote Observatory), Processing - Dietmar Hager ( stargazer-observatory ) |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |