June 30, 2006
You were born on a tiny world orbiting an ordinary star in an unremarkable galaxy — and yet, the fact that you exist at all is the most...
The Antennae
Birthday · June 30, 2006
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APOD published June 30, 2006. Credit: Daniel Verschatse (Antilhue Observatory). A publication-date match, not a photo taken on your date. Independent of NASA.
Some 60 million light-years away in the southerly constellation Corvus, two large galaxies have collided. But stars in the two galaxies - NGC 4038 and NGC 4039 - don't collide in the course of the ponderous, billion year or so long event. Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation. Spanning about 500 thousand light-years, this stunning view reveals new star clusters and matter flung far from the scene of the accident by gravitational tidal forces. Of course, the visual appearance of the far-flung arcing structures gives the galaxy pair its popular name - The Antennae. Recorded in this deep image of the region at the tip of the upper arc is a tidal dwarf galaxy NGC 4038S, formed in the cosmic debris.
Image credit: Daniel Verschatse (Antilhue Observatory)