The Star Herschel 36 Near M 8

This NASA Hubble Space Telescope (HST) image reveals a pair of one-half light-year long interstellar “twisters” — eerie funnels and twisted-rope structures (upper left) — in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 light-years away in the direction of the constellation Sagittarius.

Analogous to the spectacular phenomena of Earth tornadoes, the large difference in temperature between the hot surface and cold interior of the clouds, combined with the pressure of starlight, may produce strong horizontal shear to twist the clouds into their tornado-like appearance.

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