Browse Archive
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The Sun Sends Two CMEs Toward Mercury
On the night of April 24 and the morning of April 25, 2013, the sun erupted with two coronal mass ejections (CMEs), solar phenomena that can send billions of tons of solar particles into space.
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Three Solar Eruptions in 2 Days
The sun erupted three times over April 20 and 21, sending billions of tons of solar particles into space. The eruptions (called CMEs) were not Earth-directed.
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Solar Storm Near Earth Caused by Fast CME
Friday's fast moving CME has reached Earth and sparked a mild geomagnetic storm. Will higher latitude skies be turned green for St. Patrick's Day?
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A Coronal Mass Ejection Erupts From the Sun
A small, Earth-directed Coronal Mass Ejection erupted early this morning.
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Sun Shoots Out 2 Coronal Mass Ejections
One of the two slow-moving ejections from Jan. 23 is Earth-directed. In the past, CMEs of this speed have not caused substantial geomagnetic storms.
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New Sunspots Producing Space Weather
On Jan. 13, 2013, at 2:24 a.m. EST, the sun erupted with an Earth-directed coronal mass ejection or CME. The CME left the sun at speeds of 330 miles per second and is expected to impact Earth around Jan. 16.
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Sungrazing Comets as Solar Probes
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.
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NASA Spacecraft Observe Nov. 20 Solar Eruption
On Nov. 20, 2012, at 7:09 a.m. EST, the sun erupted with a coronal mass ejection.
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STEREO Reaches Milestone At Sixth Anniversary
On Sept. 1, 2012, the two STEREO spacecraft and Earth were almost exactly equidistant, each with a direct view of a different third of the sun.
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NASA's Solar Fleet Peers Into Coronal Cavities
By understanding the morphology, density and temperature of coronal cavities scientists can better understand eruptions on the sun and the space weather that can disrupt technologies near Earth.
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SDO Sees Massive Filament Eruption
On September 1, 2012, a long, whip-like filament erupted on the sun. The eruption, called a coronal mass ejection, caused aurora near Earth on September 3.
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STEREO Observes One of the Fastest CMEs On Record
On July 23, 2012, a massive cloud of solar material erupted off the sun. NASA Goddard scientists clocked the giant cloud, known as a coronal mass ejection, or CME, at speeds between 1,800 and 2,200 miles per second.
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A Taste of Solar Maximum
On July 14, 2012 a CME crashed into Earth's magnetic field and triggered the most sustained display of auroras in years, giving the world a taste of things to come when Solar Max arrives in 2013.
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SDO/STEREO Spot Something New On the Sun
Scientists find giant plumes on the sun, newly named "coronal cells" that are over 18,000 miles across, looking like candlesticks on a birthday cake, and might help explain coronal holes.
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STEREO Far Side Sun Voted Top 2011 NASA Triumph
Public votes STEREO mission as NASA's biggest accomplishment of 2011.
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Comet Lovejoy -- Many Views
Another view of Comet Lovejoy's solar approach taken by Hinode.
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A 360 Degree View of an X-class Flare and A CME
The sun sent out two different kinds of solar activity on November 3, 2011 in different directions: an X.19 solar flare and a particularly bright CME.
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STEREO Celebrates Five Years
On Oct. 25, 2006 STEREO launched to do something never done before: see the entire sun simultaneously.
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Space Storm Tracked from Sun to Earth
For the first time, a spacecraft far from Earth has turned and watched a solar storm engulf our planet.
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STEREO Sees Complete Far Side
The is the first complete image of the solar far side, the half of the sun invisible from Earth.