New Region of Space Discovered

NASA's Voyager 1 spacecraft has encountered a previously unknown region of space at the edge of the heliosphere described as a "magnetic highway," an area where the Sun's magnetic field lines are connected to interstellar magnetic field lines allowing for greater traffic of lower-charged particles in both directions.

Ice Found on Mercury

NASA's Messenger spacecraft has discovered evidence of abundant surface water ice on Mercury located in its permanently shadowed polar regions.