Astronomy

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8y
NGC 5291 Interacting Galaxy in Centaurus
During galaxy-galaxy interactions, gas clouds can be ejected in space that can become gravitationaly bound, collapse, form stars, star clusters, or even dwarf galaxies. Above, 39 000 light-yrs apart, NGC 5291's interacting with NGC 5291B, a dwarf galaxy (the Seashell galaxy). Stretched along the 100,000 light-yr long tidal tails, are clumps resembling dwarf galaxies, but lacking old stars, apparently dominated by young stars and active star forming regions, recycling debris NGC 5291 has ejec...