NASA’s Van Allen Probes orbit through two giant radiation belts surrounding Earth. In the time since launching two years ago, the probes have discovered a third radiation belt, and other observations have helped explain how particles in the belts can be sped up to nearly the speed of light.Image Caption and Credit: NASA
Photo Credit: Alan Walters / AmericaSpace
Using data from a NASA satellite, scientists have discovered a massive particle accelerator in the heart of one of the harshest regions of near-Earth space, a region of super-energetic, charged particles surrounding the globe and known as the Van Allen radiation belts.
One of the missions not selected under NASA’s Discovery Program was the Titan Mare Explorer or TiME. This mission would have seen the first “ship” cruise on an alien sea. Image Credit: The Johns Hopkins University Applied Physics Laboratory/Lockheed Martin
There was more than a little outcry over the selection of the InSight mission [...]