They're Baaaack! The first noctilucent clouds for the 2012 season have been spotted.
Scientists have for the first time observed especially narrow loops of solar material scattered on the sun's surface. These ultrafine loops may help with determining how temperatures rise throughout the corona.
During a powerful solar blast on March 7, the Fermi telescope detected the highest-energy light ever associated with an eruption on our sun.
Engineers have started integrating instruments on the first of four instrument decks in a newly fabricated cleanroom at Goddard.
Astronomers hope to glimpse a "ring of fire" around Venus during its historic transit across the sun on June 5-6. The apparition, if it is seen, could help crack some of the deepest mysteries of the second planet.
During the Venus Transit on June 5-6, 2012, the RHESSI science team hopes to improve the accuracy of their measurements of the diameter of the sun, to provide the best measurement ever obtained.
Astronaut Don Pettit will photograph the June 5, 2012 Transit of Venus from the ISS. He and the Expedition 31 crew will be the first people in history to see a Venus transit from space.
NASA's Solar Dynamics Observatory (SDO) will be watching the June 5, 2012 Venus Transit to help calibrate its instruments as well as to learn more about Venus's atmosphere.
An M-class flare on May 17, 2012 shot out a burst of solar particles traveling at nearly the speed of light. When they collided with atoms in Earth's atmosphere they caused a ground level enhancement.
Spacecraft and computer simulations reveal the moon's extensive but invisible influence.