Telling Tendrils: A deep new image of part of the Virgo cluster has revealed monumental tendrils of ionized hydrogen gas 400,000 light-years long connecting the elliptical galaxy M86 (right) and the disturbed spiral galaxy NGC 4438 (left). The filaments of hydrogen gas trace back to a very high-speed intergalactic collision. [Tomer Tal and Jeffrey Kenney/Yale University and NOAO/AURA/NS]
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So if the red filaments are ionized hydrogen gas, what are the green filaments coming from the galaxy in the lower-right of the photo? If they were explained in the article I missed that...
Galaxies shouldn’t drink and drive.
run it backwards and let's see what happened.