Heliophysics - Space Weather Topics
Cannibal Coronal Mass Ejections
2001 — April 6, 2011
Fast-moving solar eruptions that overtake and devour their slower-moving kin can trigger long-lasting geomagnetic storms when they strike Earth's magnetosphere.
The Biggest Explosions in the Solar System
2001 — Sept. 20, 2011
Scientists hope NASA's HESSI spacecraft will unravel an explosive mystery: the origin of solar flares.
What Lies Beneath a Sunspot
2001 — April 6, 2011
Awesome plasma hurricanes were one of the surprises revealed when scientists recently peered beneath the stormy surface of our star.
The Sun Does a Flip
2001 — April 6, 2011
NASA scientists who monitor the Sun say that our star's awesome magnetic field is flipping -- a sure sign that solar maximum is here.
Nature's Tiniest Space Junk
2001 — April 6, 2011
NASA scientists are using an experimental radar to monitor a swarm of tiny meteoroids surrounding our planet. Listen to the echoes, live!
NASA Spacecraft Make New Discoveries about Northern Lights
2007 — April 6, 2011
NASA's fleet of THEMIS satellites have made some surprising new discoveries about outbursts of Northern Lights and the source of their power. The discoveries include giant magnetic ropes that connect Earth to the Sun and explosions in the outskirts of Earth's magnetic field.
New Phenomena on the Sun
2007 — April 6, 2011
NASA has released never-before-seen images that show intense activity in an unexpected place on the sun.
A Breakthrough in Solar Storm Forecasting
2007 — April 6, 2011
A scientist using the Solar and Heliospheric Observatory (SOHO) has found a way to forecast solar radiation storms.
The Sun Rips off a Comet's Tail
2007 — April 6, 2011
Earlier this year, Comet Encke was passing a little too close to the Sun when a coronal mass ejection (CME) hit the comet and ripped off its tail. NASA's STEREO spacecraft was watching and recorded a must-see movie featured in today's story.
Strange Space Weatherover Africa
2007 — April 6, 2011
Scientists are converging on Ethiopia this week to discuss a new and strange form of Space Weatherover Africa.