© NASA/JPL-Caltech/University of Wisconsin
An infrared view of the choppy star-making cloud called M17, or the Swan nebula.
A new image from NASA's Spitzer Space Telescope shows a turbulent star-forming region, where rivers of gas and stellar winds are eroding thickets of dusty material.
The picture provides some of the best examples yet of the ripples of gas, or bow shocks, that can form around stars in choppy cosmic waters.
"The stars are like rocks in a rushing river," said Matt Povich of the University of Wisconsin, Madison. "Powerful winds from the most massive stars at the center of the cloud produce a large flow of expanding gas. This gas then piles up with dust in front of winds from other massive stars that are pushing back against the flow." Povich is lead author of a paper describing the new findings in the Dec. 10 issue of the
Astrophysical Journal.
Spitzer's new infrared view of the stormy region, called M17, or the Swan nebula, is now online. The Swan is located about 6,000 light-years away in the constellation Sagittarius.
Comment: Once again, researcher shy away from mentioning the fact that comets are just as much a threat of colliding with Earth as an asteroid is.
Also, the spectacular meteorite siting across Western Canada was never picked up on their Spaceguard telescopes. Or at least we were never warned. So, amid all of their excitement to having spotted one of many meteorites that have entered the earth's atmosphere, their success rate is severely lacking.
Do not depend on the government run space agencies to tell us of a real threat from above. It all depends on the PTB's agenda on what we are told about anything.