The International Space Station. Credit: NASA

Sunday, July 20, 2014

NEW NASA SPACE LAUNCH SYSTEM

FROM:  NASA 

NASA’s Space Launch System, or SLS, will be the most powerful rocket in history. The flexible, evolvable design of this advanced, heavy-lift launch vehicle will meet a variety of crew and cargo mission needs. In addition to carrying the Orion spacecraft, SLS will transfer important cargo, equipment and science experiments to deep space, providing the nation with a safe, affordable and sustainable means to expand our reach in the solar system. It will allow astronauts aboard Orion to explore multiple deep-space destinations including an asteroid and ultimately Mars. The first configuration of the SLS launch vehicle will have a 70-metric-ton (77-ton) lift capacity and carry an uncrewed Orion spacecraft beyond low-Earth orbit to test the performance of the integrated system. As the SLS is evolved, it will be the most powerful rocket ever built and provide an unprecedented lift capability of 130 metric tons (143 tons) to enable missions even farther into our solar system. Image Credit: NASA.

Sunday, July 13, 2014

A TYPICAL SUN BURST

FROM:  NASA 




A stream of plasma burst out from the sun, but since it lacked enough force to break away, most of it fell back into the sun (May 27, 2014). The video, seen in a combination of two wavelengths of extreme ultraviolet light, covers a little over two hours. This eruption was minor and such events occur almost every day on the sun and suggest the kind of dynamic activity being driven by powerful magnetic forces near the sun's surface.   Image credit: NASA/Solar Dynamics Observatory.