Rare Merger of Two Galaxies: Arp 302 (VV 340)
Washington DC, December 6, 2025 – NASA and the European Space Agency’s (ESA) iconic Hubble Space Telescope has once again delivered a breathtaking view of the cosmos. This time, it has captured the dramatic interaction between two galaxies known as Arp 302, also designated as VV 340.
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| Original image shared on X by @konstructivizm |
Exceptionally Bright Infrared Glow
Arp 302 is classified as a Luminous Infrared Galaxy (LIRG). Its infrared brightness is so intense that scientists initially suspected a nuclear starburst, but the real reason is even more fascinating: an enormous reservoir of molecular gas fueling widespread and continuous star formation.
Unique and Asymmetric Star Formation
Particularly in the northern galaxy (Arp 302N), new stars are forming in an uneven, asymmetric pattern. Researchers believe both galaxies are on the verge of entering a violent starburst phase in the near future.
Image Details and Technology
This mesmerizing image was created using data from the Spitzer Space Telescope’s Infrared Array Camera (IRAC). Different infrared wavelengths are represented in blue, green, and red colors.
What Does the Future Hold?
Astronomers predict that these two galaxies will eventually merge completely, forming a single massive galaxy – similar to the future collision between our Milky Way and the Andromeda galaxy millions of years from now.
Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA) (Original image shared on X by @konstructivizm
The image displays a pair of interacting galaxies known as Arp 302, or VV 340. The system is notable for its high infrared luminosity, which is thought to be due to an unusually large amount of molecular gas and ongoing star formation rather than a concentrated starburst in the… pic.twitter.com/5NcZKJ5VC9
— Black Hole (@konstructivizm) December 6, 2025
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