Cosmic caterpillar

This light-year-long knot of interstellar gas and dust resembles a caterpillar on its way to a feast. But the meat of the story is not only what this cosmic caterpillar eats for lunch, but also what’s eating it. Harsh winds from extremely bright stars located 15 light-years away from the knot towards the right edge of the image, are blasting ultraviolet radiation at this “wanna-be” star and sculpting the gas and dust into its long shape.
The caterpillar-shaped knot, called IRAS 20324+4057, is a protostar in a very early evolutionary stage. It is still in the process of collecting material from an envelope of gas surrounding it.

Image credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and IPHAS

Cosmic caterpillar

This light-year-long knot of interstellar gas and dust resembles a caterpillar on its way to a feast. But the meat of the story is not only what this cosmic caterpillar eats for lunch, but also what’s eating it. Harsh winds from extremely bright stars located 15 light-years away from the knot towards the right edge of the image, are blasting ultraviolet radiation at this “wanna-be” star and sculpting the gas and dust into its long shape.

The caterpillar-shaped knot, called IRAS 20324+4057, is a protostar in a very early evolutionary stage. It is still in the process of collecting material from an envelope of gas surrounding it.

Image credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and IPHAS

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