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This is Scientific Americans' 60-second science. I'm Steve Merski. Got a minute?

A recently discovered breed of galaxies really caught astronomers' attention because they look like jellyfish.

Astronomers found the first jellyfish galaxy a decade ago. Such a galaxy has a disk of stars,

like our Milky Way, plus long blue tendrils. A jellyfish galaxy

was once a spiral like the Milky Way, spawning new stars from its gas and dust. But unlike the

Milky Way, a jellyfish belongs to a cluster of galaxies. A recent analysis of Hubble telescope

images led to the conclusion that extremely hot gas from the

cluster is behind the formation of jellyfish. That studies in the astrophysical journal letters.

As the galaxy plows through space, this hot gas rips out the galaxy's own gas and dust,

forming the long streamers behind the galaxy. This torn-out gas still gives birth to new

stars. The brightest of these newborn stars shine blue, so the former disc-shaped galaxy

metamorphosizes into a celestial jellyfish sporting long blue tendrils. The galaxy will eventually

literally run out of gas and thus lose the ability

to create any more new stars. Jellyfish in the sea can be deadly, but in space, the mortally

wounded victim is the jellyfish galaxy itself. Thanks for the minute. For Scientific Americans

60 Second Science, I'm Steve Murski.