Welcome to the galaxy JW100.

Located about 800 million light-years away, it resides in the constellation Pegasus.

Seen at the lower right of this #hubblefriday image, JW100 is known as a "jellyfish" galaxy because of its tendril-like streams of star-forming gas.

These tendrils form in a process called ram pressure stripping, which occurs when a galaxy comes in contact with diffuse gas within a cluster of galaxies. As the galaxy moves through the gas, the gas acts like a headwind by stripping gas and dust away from the galaxy.

Image description: A thin spiral galaxy is seen edge-on in the lower right. Its bulge and arms are very bright, mixing reddish and bluish light. Patchy blue trails extend below it, resembling tentacles, made from star-forming regions. Six small, reddish elliptical galaxies are scattered around. A very large elliptical galaxy with two cores sits by the top of the frame.

Image credit: ESA/Hubble & NASA, M. Gullieuszik and the GASP team

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