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April 24, 2003 09:00 AM (EDT)

News Release Number: STScI-2003-13

Hubble Captures a Perfect Storm of Turbulent Gases

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Image: A Perfect Storm of Turbulent Gases in the Omega/Swan Nebula (M17)

A Perfect Storm of Turbulent Gases in the Omega/Swan Nebula (M17)STScI-PRC2003-13

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ABOUT THIS IMAGE:

Resembling the fury of a raging sea, this image actually shows a bubbly ocean of glowing hydrogen gas and small amounts of other elements such as oxygen and sulfur.

The photograph, taken by NASA's Hubble Space Telescope, captures a small region within M17, a hotbed of star formation. M17, also known as the Omega or Swan Nebula, is located about 5,500 light-years away in the constellation Sagittarius. The image is being released to commemorate the thirteenth anniversary of Hubble's launch on April 24, 1990.

The wave-like patterns of gas have been sculpted and illuminated by a torrent of ultraviolet radiation from young, massive stars, which lie outside the picture to the upper left. The glow of these patterns accentuates the three-dimensional structure of the gases. The ultraviolet radiation is carving and heating the surfaces of cold hydrogen gas clouds. The warmed surfaces glow orange and red in this photograph. The intense heat and pressure cause some material to stream away from those surfaces, creating the glowing veil of even hotter greenish gas that masks background structures. The pressure on the tips of the waves may trigger new star formation within them.

The image, roughly 3 light-years across, was taken May 29-30, 1999, with the Wide Field Planetary Camera 2. The colors in the image represent various gases. Red represents sulfur; green, hydrogen; and blue, oxygen.

Object Names: M17, NGC 6618, Swan Nebula, Omega Nebula

Image Type: Astronomical

Credit: NASA, ESA and J. Hester (ASU)

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