Formation of structure within gas clouds

HST Image of Thackery’s Globules

HST ACS Picture of the Cone Nebula

ACS and NICMOS Images of the Cone Nebula. Note the increased "transparency" in the image on the right.

Movies of this are at

HST ACS Picture of the Cone Nebula

This Hubble telescope snapshot unveils 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 (M8) which lies 5,000 light-years from Earth in the direction of the constellation Sagittarius.

The hot, central star, O Herschel 36 [upper left], is the primary source of the illuminating light for the brightest region in the nebula, called the Hourglass. The glare from this hot star is eroding the clouds by heating the hydrogen gas in them [seen as a blue "mist" at the right of the image]. This activity drives away violent stellar winds that are tearing into the cool clouds.

Credit: A. Caulet (ST-ECF, ESA) and NASA

Zoom of Above Lagoon Image.

IRAS (far-infrared) View of Orion's glowing Dust

See also: The COMPLETE Survey of Star-Forming Regions.