Exploring the Antennae
Image Credit & Copyright: Data; Subaru, NAOJ, NASA/ESA/Hubble - Assembly and Processing; Roberto Colombari
Explanation: Some 60 million light-years away in the southerly
constellation Corvus, two large galaxies are
colliding. Stars in the two galaxies, cataloged as
NGC 4038 and NGC 4039, very rarely collide in the course of the
ponderous cataclysm that lasts for hundreds of millions of years. But the galaxies' large clouds of
molecular gas and dust often do, triggering
furious episodes of star formation near the center of the
cosmic wreckage. Spanning over 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. The remarkable mosaicked image was constructed using data from the ground-based Subaru telescope to bring out large-scale and faint tidal streams, and Hubble Space Telescope data of extreme detail in the bright cores. The suggestive visual appearance of the
extended arcing structures gives the galaxy pair its popular name - The Antennae.
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