Archive

Archive for April 4, 2012

NASA to Host 75 Social Media Followers at Dryden NASA Social


NASA will host 75 social media followers May 4 to go behind-the-scenes and learn more about NASA aeronautics, science and other projects at the agency’s Dryden Flight Research Center on Edwards Air Force Base in California.

Dryden is NASA’s primary center for atmospheric flight research and operations. Its remote location in the western Mojave Desert is uniquely situated for excellent year-round weather and visibility to test innovative air vehicles.

The event begins at 7:30 a.m. PDT and will include tours of current aircraft and presentations on cutting-edge aeronautical research and science projects. Not only will guests learn about sonic booms, they could experience one first-hand.

Full Story: http://www.nasa.gov/home/hqnews/2012/apr/HQ_12-104_Dryden_NASASocial.html

NASA Seeks Hosts for Space Station Interactive Education Events


NASA is seeking formal and informal education organizations to host live in-flight interactive conversations between the next generation of explorers and astronauts aboard the International Space Station (ISS).

Comprehensive proposals are being accepted for missions scheduled between September 2012 and March 2013. The deadline to submit is Friday, June 1, 2012.

During ISS Expeditions 33 and 34, NASA crew members Sunita Williams, Kevin Ford and Thomas Marshburn will participate in 20-minute question-and-answer sessions with students who will learn what it is like to live and work in space. While participants see and hear the crew members live from space, the crew does not see the audience.

U.S. education organizations including school districts, museums, science centers, national and regional education organizations and local, state and federal government agencies are eligible to participate. Organizations may apply individually or work together. NASA provides this opportunity at no charge to the host institution and will work with the organization to plan the event.

Full Story: http://www.nasa.gov/home/hqnews/2012/apr/HQ_12-105_Hosts_Ed_Downlinks.html

Cosmic ‘Leaf Blower’ Robs Galaxy of Star-Making Fuel


Image credit: NASA/JPL-Caltech/SDSS/NRAO/ASIAA

Image credit: NASA/JPL-Caltech/SDSS/NRAO/ASIAA

Supernova explosions and the jets of a monstrous black hole are scattering a galaxy’s star-making gas like a cosmic leaf blower, a new study finds. The findings, which relied on ultraviolet observations from NASA’s Galaxy Evolution Explorer and a host of other instruments, fill an important gap in the current understanding of galactic evolution.

It has long been known that gas-rich spiral galaxies like our Milky Way smash together to create elliptical galaxies such as the one observed in the study. These big, round galaxies have very little star formation. The reddish glow of aging stars comes to dominate the complexion of elliptical galaxies, so astronomers refer to them as “red and dead.”

The process that drives the dramatic transformation from spiral galactic youth to elderly elliptical is the rapid loss of cool gas, the fuel from which new stars form. Supernova explosions can start the decline in star formation, and then shock waves from the supermassive black hole finish the job. Now astronomers think they have identified a recently merged galaxy where this gas loss has just gotten underway.

Full Story: http://www.jpl.nasa.gov/news/news.cfm?release=2012-094