- News Home
27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Featuring the first lunar rover in 40 years, Chang'e-3 is seen as an important milestone on China's quest to send a...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
Video: Surf's Up for Massive Stars
18 August 2010 2:11 pm
Please download the latest version of the free Flash plug-in.
Credit: Berné et al., Nature
Just as wind whips up waves in the ocean, high velocity gas emanating from massive stars can give rise to ripples in the surrounding cloud of gas and dust. That's what astronomers have found from studying periodic ripples observed at the surface of the gigantic Orion molecular cloud, which is located about 1500 light-years away. Using a combination of new radio observations and old infrared images, the researchers have been able to map the wavelike formations that develop in the cloud, they report online today in Nature. From these detailed images, the researchers conclude that the ripples are likely formed when gas spewing out at high velocities from newly formed massive stars blows over the more sluggish gas of the molecular cloud, in the same way that wind gusts traveling at high speeds cause waves to form at the ocean surface. In the video above, the KH arrow indicates the position of the waves in the molecular cloud.
See more Videos.