Just 96 days since launch, the Van Allen Probes have already provided new insights into the structure and behavior of the radiation belts that surround Earth.
On Dec. 15, 2011, NASA's Solar Dynamics Observatory captured footage of Comet Lovejoy approaching the sun. The images and data collected by NASA's solar observing fleet can help scientists learn more about the sun itself.
A joint ESA/NASA mission, SOHO has helped revolutionize our understanding of the sun's interior and complex atmosphere since it launched on Dec. 2, 1995.
NASA's Voyager 1 spacecraft has entered a new region at the far reaches of our solar system that scientists feel is the final area the spacecraft has to cross before reaching interstellar space.
After two successful years of on-orbit operations, NASA's Fast, Affordable, Science and Technology Satellite, or FASTSAT, mission is coming to an end.
The sun goes through a natural solar cycle approximately every 11 years. The greatest number of sunspots in any given solar cycle is designated as 'solar maximum.' The lowest number is 'solar minimum.'
NASA has found a cure for a common phobia--the fear of asking 'stupid' questions. The cure is a rubber chicken named Camilla.
The orbit of Hinode resulted in two eclipses on Nov. 13, 2012, near the time that a total eclipse was visible in Australia.
On Nov. 13, 2012, a narrow corridor in the southern hemisphere experienced a total solar eclipse.
On the morning of Nov. 14, 2012 (Australia time), about an hour after sunrise, the Moon will pass directly in front of the sun. Scientists and sky watchers are converging on the northeast coast of Australia, near the Great Barrier Reef, for a total eclipse of the sun.