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First X-Class Solar Flares of 2013
On May 13, 2013, the sun
emitted an X2.8-class flare,
peaking at 12:05 p.m. EDT.
This is the the strongest
X-class flare of 2013 so
far, surpassing in strength
the X1.7-class flare that
... > full story
NASA's Wind Mission Encounters 'SLAMS' Waves
To tease out what happens at
that boundary of the
magnetosphere and to better
understand how radiation and
energy from the sun can
cross it and move closer to
... > full story
NASA's SORCE Satellite Marks a Decade in the Sun
NASA's Solar Radiation and
Climate Experiment (SORCE)
satellite has been providing
data on the sun's irradiance
for 10 years. SORCE measures
electromagnetic radiation p ... > full story
Sun in the Way Will Affect Mars Missions in April
The positions of the planets
next month will mean
diminished communications
between Earth and NASA's
spacecraft at Mars. Mars
will be passing almost
... > full story
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Voyager 1 Has Entered a New Region of Space, Sudden Changes in Cosmic Rays Indicate
March 20, 2013 — Thirty-five years after its launch, Voyager 1 appears to have travelled beyond the influence of the Sun and exited the heliosphere, according to a new ... > full story -
Particles and Fields Package Integrated on Upcoming Mars-Bound Spacecraft
March 14, 2013 — The six science instruments that comprise the Particles and Fields Package that will characterize the solar wind and ionosphere of Mars have been integrated aboard NASA's Mars Atmosphere and Volatile ... > full story -
NASA's Van Allen Probes Reveal a New Radiation Belt Around Earth
February 28, 2013 — NASA's Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of ... > full story -
NASA Deciphering the Mysterious Math of the Solar Wind
February 21, 2013 — The sun and its prodigious stream of solar particles, called the solar wind, can be particularly tricky to model since as the material streams to the outer reaches of the solar system it carries ... > full story -
Faraday Cup Critical Part of Audacious Mission to the Sun
February 21, 2013 — A critical instrument on a mission to the sun is being tested. The flight's experiments could answer the question: How can the sun be hot at its core yet stay relatively cool at its surface, while at ... > full story -
NASA's SDO Shows a Little 'Rain' on the Sun
February 20, 2013 — Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection, and some with complex moving ... > full story -
Sun's Next-Door Twin: Cool Layer in the Atmosphere of Alpha Centauri A
February 20, 2013 — The European Space Agency's Herschel space observatory has detected a cool layer in the atmosphere of Alpha Centauri A, the first time this has been seen in a star beyond our own Sun. The finding is ... > full story -
Cassini Sheds Light on Cosmic Particle Accelerators
February 19, 2013 — During a chance encounter with what appears to be an unusually strong blast of solar wind at Saturn, NASA's Cassini spacecraft detected particles being accelerated to ultra-high energies. This is ... > full story -
Year Three: NASA's Solar Dynamics Observatory Mission Highlights
February 12, 2013 — On Feb. 11, 2010, NASA launched an unprecedented solar observatory into space. NASA's Solar Dynamics Observatory (SDO) flew up on an Atlas V rocket, carrying instruments that scientists hoped would ... > full story -
New 'Retention Model' Explains Enigmatic Ribbon at Edge of Solar System
February 5, 2013 — Since its Oct. 2008 launch, NASA's Interstellar Boundary Explorer has provided images of the invisible interactions between our home in the galaxy and interstellar space. Particles emanating from ... > full storyMore:
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