|
||||
|
|
||||
|
|
||||
|
Superwind sculpts features in spiral galaxy NASA PHOTO RELEASE Posted: February 19, 2003
The correlation of the warm and hot filaments suggests that they were both formed as a superwind of gas -- rushing out from the central regions of the galaxy -- carved a cavity in the cool gas of disk galactic disk. The superwind stripped fragments of gas off the walls of the cavity, stretched them into long filaments, and heated them. The full extent of the superwind shows up as a fainter conical cloud of X-ray emission surrounding the filaments. A superwind, such as the one in NGC 3079 originates in the center of the galaxy, either from activity generated by a central supermassive black hole, or by a burst of supernova activity. Superwinds are thought to play a key role in the evolution of galaxies by regulating the formation of new stars, and by dispersing heavy elements to the outer parts of the galaxy and beyond. These latest Chandra data indicate that astronomers may be seriously underestimating the mass lost in superwinds and therefore their influence within and around the host galaxy.
|
Gemini 7 Gemini 7: The NASA Mission Reports covers this 14-day mission by Borman and Lovell as they demonstrated some of the more essential facts of space flight. Includes CD-ROM.U.S. - U.K. - E.U. - Worldwide Apollo patches The Apollo Patch Collection: Includes all 12 Apollo mission patches plus the Apollo Program Patch. Save over 20% off the Individual price. U.S. - U.K. - E.U. - Worldwide Mars Rover mission patch A mission patch featuring NASA's Mars Exploration Rover is available from our online.U.S. - U.K. - E.U. - Worldwide Apollo 9 DVD On the road to the moon, the mission of Apollo 9 stands as an important gateway in experience and procedures. This 2-DVD collection presents the crucial mission on the voyage to the moon.U.S. - U.K. - E.U. - Worldwide Liberty Bell 7 Lost Spacecraft - the Search for Liberty Bell 7 describes the exploration of two unique and dangerous environments - space and underwater - in the recovery of Gus Grissom's Mercury capsule.Hubble Calendar
NEW! This remarkable calendar features stunning images of planets, stars, gaseous nebulae, and galaxies captured by NASA's orbiting Hubble Space Telescope .
An insider's view of how Apollo flight controllers operated and just what they faced when events were crucial.U.S. |
||||
|
INDEX | PLUS | NEWS ARCHIVE | LAUNCH SCHEDULE ASTRONOMY NOW | STORE ADVERTISE © 2008 Pole Star Publications Ltd |
|||||