Wednesday, December 3, 2025

These Two Galaxies Are Tying The Knot And Producing Stars

The dwarf galaxies NGC 4490 and NGC 4485 are caught interacting with one another in this ESA/JWST Picture of the Month. The pair are about 24 million light-years away, but that didn't stop the powerful James Webb Space Telescope from resolving their stellar populations or the gas bridge spanning between the two galaxies. Image Credit: ESA/Webb, NASA & CSA, A. Adamo (Stockholm University), G. Bortolini, and the FEAST JWST team. LICENCE: CC BY 4.0 INT or ESA Standard Licence

The European Space Agency has release its ESA/Webb Picture of the Month and it features a pair of dwarf galaxies engaged in a tentative dance, like nervous partners at a social. The pair are a staggering 24 million light-years away. But even at that great distance, the pair of galaxies is the closest-known interacting pair of dwarfs, other than the Milky Way's Magellanic Clouds, where both the stellar populations and the gas bridge linking the galaxies have been observed.



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