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Explanation: The most active part of the Orion Nebular Cloud Complex is an area known as the Kleinmann-Low Nebula. There, a cluster of young and forming stars is embedded in a molecular cloud filled with dust. In visible light, the dark dust blocks much of Orion KL's light, but in the infrared light of the above photograph, the area seems literally to explode. Hot stellar winds flowing off massive young stars in Orion KL region permeate and heat surrounding gas, causing finger-like intrusions. Near the center of Orion KL is IRc2, a particularly active star estimated to have over 30 times the mass of our Sun. Radio telescopes have recently detected unusual emission from water molecules - maser radiation from the Kleinmann-Low Nebula.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: nebula - molecular cloud
Publications with words: nebula - molecular cloud
See also:
- APOD: 2026 July 22 Á The Corona Australis Cloud and the Chandelier Cluster
- APOD: 2026 July 9 Á The Red Glow of the Cosmic Bat Nebula
- APOD: 2026 July 7 Á NGC 6188: Dragons of Ara
- APOD: 2026 July 1 Á The Cotton Candy Clouds of Rho Ophiuchi
- APOD: 2026 May 19 Á NGC 2170: The Angel Nebula
- A Dark Seahorse in Cepheus
- Lynds Dark Nebula 43