In order to reduce power consumption to extend its mission, managers have turned off a heater on part of NASA’s Voyager 1 spacecraft, dropping the temperature of its ultraviolet spectrometer instrument more than 23^oC

NASA's Voyager 1 spacecraft has entered a new region between our solar system and interstellar space. Data obtained from Voyager over the last year reveal this new region to be a kind of cosmic purgatory. In it, the wind of charged particles streaming out from our sun has calmed, our solar system's magnetic field has piled up, and higher-energy particles from inside our solar system appear to be leaking out into interstellar space.

The Visible Infrared Imager Radiometer Suite (VIIRS) on the United States’ newest Earth-observing satellite, NPP, acquired its first measurements on November 21, 2011. This image above shows a broad swath of eastern North America from the Great Lakes to Cuba. The image shows the full scene from Hudson Bay to the northern coast of Venezuela.

The Advanced Technology Microwave Sounder (ATMS) on board NASA's newest Earth-observing satellite, NPP has acquired its first measurements which measures water vapor in the lower atmosphere.