The International Space Station. Credit: NASA

Sunday, February 3, 2013

ROBOTIC REFUELING MISSION DEMO

FROM: NASA



Robotic Refueling Mission Demo

Robots present certain advantages when working in the harsh environment of space. They're not susceptible to hunger, to sleepiness, or catastrophic injury for starters. They're also capable of highly precise, yet highly tedious tasks-- tasks that might otherwise consume huge resources and attention from already busy astronauts and ground controllers. In an important demonstration of new technical methodologies, NASA engineers will try to simulate the transfer of fuel from one vehicle to another, in space, with nothing but robots doing the physical work. Called the Robotic Refueling Mission, it's a major step on the road to developing a robust suite of essential robotic capabilities in space.

Credit-NASA's Goddard Space Flight Center

NASA VIDEO: STUDYING SMART FLUIDS IN SPACE

FROM: NASA

 ISS Update: Studying Smart Fluids in Space

Dr. Eric Furst from the University of Delaware joins NASA Public Affairs Officer Kelly Humphries in the Mission Control Center in Houston via telephone to discuss the InSpace-3 experiment taking place aboard the International Space Station

Saturday, February 2, 2013

THE DEAD STAR




FROM: NASA
Sizzling Remains of a Dead Star

This new view of the historical supernova remnant Cassiopeia A, located 11,000 light-years away, was taken by NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR. Blue indicates the highest energy X-ray light, where NuSTAR has made the first resolved image ever of this source. Red and green show the lower end of NuSTAR's energy range, which overlaps with NASA's high-resolution Chandra X-ray Observatory.

Light from the stellar explosion that created Cassiopeia A is thought to have reached Earth about 300 years ago, after traveling 11,000 years to get here. While the star is long dead, its remains are still bursting with action. The outer blue ring is where the shock wave from the supernova blast is slamming into surrounding material, whipping particles up to within a fraction of a percent of the speed of light. NuSTAR observations should help solve the riddle of how these particles are accelerated to such high energies

X-ray light with energies between 10 and 20 kiloelectron volts are blue; X-rays of 8 to 10 kiloelectron volts are green; and X-rays of 4.5 to 5.5 kiloelectron volts are red.

The starry background picture is from the Digitized Sky Survey.


Image credit: NASA/JPL-Caltech/DSS

 

TDRS-K LAUNCH CLOSE-UP

FROM: NASA



Close-up Views of TDRS-K Launch


See multiple views of the Atlas V launch of the TDRS-K spacecraft