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Image of Comet McNaught caught by one of the instruments on the STEREO spacecraft.

STEREO Sees Comet McNaught (Mission News- NASA) - January 12, 2007
This image of Comet McNaught comes from the Heliospheric Imager on one of the STEREO spacecraft, taken Jan. 11, 2007. To the right is the comet nucleus, so bright it saturates the detector creating a bright vertical band in the image. The comet's dynamic tails extend up and to the left.



First Images From Hinode Offer New Clues About Our Violent Sun (NASA News) - December 22, 2006
WASHINGTON - Instruments aboard a Japan Aerospace Exploration Agency satellite named Hinode, or "Sunrise," are returning extraordinary new images of our sun. The international mission to study the forces that drive the violent, explosive power of the sun launched from Japan in September.

Scientists Predict Big Solar Cycle (NASA Feature) - December 21, 2006
Evidence is mounting: the next solar cycle is going to be a big one.

A close up of loops in a magnetic active region. These loops, observed by STEREO's SECCHI/EUVI telescope, are at a million degrees C. This powerful active region, AR903, observed here on Dec. 4, produced a series of intense flares over the next few days.STEREO Sends Back First Solar Images (Mission News- NASA) - December 20, 2006
NASA's twin Solar Terrestrial Relations Observatories (STEREO) sent back their first images of the sun this week and with them a view into the sun's mounting activity.

Space Station Glitch Possibly Caused by Solar Flare
- December 15, 2006
HOUSTON -- A glitch in the International Space Station’s (ISS) U.S.-built attitude control system may have its root in a massive solar flare that erupted from the Sun this week, a NASA flight director said Friday.

2006 Transit of Mercury (NASA Feature) - November 8, 2006
On Wednesday, Nov 8, the planet Mercury passed directly in front the Sun. What did it look like? A picture is worth a thousand words.

First Light for Hinode (NASA Feature) - November 2, 2006
Get ready for some fantastic images of the Sun. The Solar Optical Telescope (SOT) onboard Japan's Hinode spacecraft has opened its doors and started snapping pictures.

transit graphic2006 Transit of Mercury (NASA Feature) - October 20, 2006
Mark your calendar: On Wednesday, Nov 8th, the planet Mercury will pass directly in front the Sun. The transit begins at 2:12 pm EST (11:12 am PST) and lasts for almost five hours. Good views can be had from the Americas, Hawaii, Australia and all along the Pacific Rim: visibility map.

Surprises from the Edge of the Solar System (NASA Feature) - September 21, 2006
Almost every day, the great antennas of NASA's Deep Space Network turn to a blank patch of sky in the constellation Ophiuchus. Pointing at nothing, or so it seems, they invariably pick up a signal, faint but full of intelligence. The source is beyond Neptune, beyond Pluto, on the verge of the stars themselves.

Solar Sentinels (NASA Feature) - September 1, 2006
In his 1970s book, Space, James Michener depicted a fictional Apollo mission that lost its crew to radiation from a massive solar flare. He based his tale on what easily might have been but for lucky timing: a massive flare on Aug. 7, 1972 occurred between Apollo 16 (April) and Apollo 17 (December), mankind's last journeys to the Moon. The event still resonates today.

A Summer Flare from the Sun to the Earth (NASA Feature) - August 22, 2006
Scientists say that the next solar cycle of activity is close-by; read Backward Sunspot to check out the sunspot that may be starting the whole process. In the meantime, this large sunspot, named Active Region 904, has been sputtering on for days on end. After watching it rotate into view on Aug. 9, it finally popped off a modest (C-class) flare and associated coronal mass ejection (CME) on Aug. 17 when it had rotated into a location where it practically faced Earth.

Produced by SOHO's Large Angle and Spectrometric Coronagraph, this image shows a coronal mass ejection spinning off from the sun. Staying a Step Ahead of the Sun (NASA Education Feature) - August 17, 2006
NASA's SOHO satellite looks deep inside the sun to better predict its harmful impacts on Earth.
Educators K-4 | 5-8 | 9-12 | Post Secondary
Students 9-12 | Post Secondary

Backward Sunspot (NASA Feature) - August 15, 2006
On July 31st, a tiny sunspot was born. It popped up from the sun's interior, floated around a bit, and vanished again in a few hours. On the sun this sort of thing happens all the time and, ordinarily, it wouldn't be worth mentioning. But this sunspot was special: It was backward.

Flare Ends Sun's Quiet Spell (NASA Featured Image)- July 7, 2006
After a long quiet spell without any strong solar storms, the sun unleashed a flare (M-class, which means moderate) and a fairly substantial coronal mass ejection on July 7.

Conceptual Model of the Sun
NASA and NSF Computers Simulate Sun's Corona (NASA Feature)- June 26, 2006 For the first time, researchers have developed a computer simulation that can accurately create a model of the sun's outer atmosphere, or corona. Funded by NASA and the National Science Foundation, the computer model marks the beginning of a new era in space weather prediction.
For additional information and graphics, visit:

Long Range Solar Forecast (NASA Feature)- May 10, 2006
The Sun's "Great Conveyor Belt" has slowed to a record-low crawl, which has important implications for future solar activity: Solar Cycle 25 peaking in 2022 could be one of the weakest in centuries.

NASA Sees Eclipse in a Different Light (NASA Feature)- March 27, 2006
It's not easy to see a total solar eclipse. They're rare -- the next one visible in the U.S. is in 2017 -- and you can't look directly at them. But in the early morning hours of March 29, seeing the next solar eclipse will be easy -- just visit this Web page.

Intense auroras over Fairbanks, Alaska, in 1958.Solar Storm Warning (NASA Feature)- March 15, 2006
It's official: Solar minimum has arrived. Sunspots have all but vanished. Solar flares are nonexistent. The sun is utterly quiet.
Like the quiet before a storm.
Recently researchers announced that a storm is coming--the most intense solar maximum in fifty years.

Solar Storms: Nowhere to Hide from SOHO's Improved 'X-Ray Vision' (NASA Feature)- March 9, 2006
NASA researchers using the Solar and Heliospheric Observatory (SOHO) spacecraft have developed a method of seeing through the sun to the star's far side. The sun's far side faces away from the Earth, so it is not directly observable by traditional techniques.
For more information, see:
MDI Full-Farside Description
Access to new farside data

Solar flares may pack a bigger punch ( March 9, 2006
A new computer model suggests the next solar cycle will be more active than the previous one, potentially spawning magnetic storms that will be more disruptive to communication systems on Earth.

Solar activity at different times Scientists Gaze Inside Sun, Predict Strength of the Next Solar Cycle (NASA - Goddard Space Flight Center News)- March 6, 2006
The next solar activity cycle will be 30 to 50 percent stronger than the previous one, and up to a year late in arriving, according to a breakthrough forecast by Dr. Mausumi Dikpati and colleagues at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. The scientists made the first "solar climate" forecast using a combination of groundbreaking observations of the solar interior from space and computer simulation. NASA's Living With a Star program and the National Science Foundation funded the research.

Solar Minimum has Arrived (NASA Feature)- March 6, 2006
Where have all the sunspots gone? Solar minimum has arrived.


Voyages to the Sun (NASA- "Why We Explore")- December 2, 2005
Humanity's epic voyages to the Moon are well known, the stuff of history. But what about voyages to the Sun? Though they do not involve human spacecraft, those voyages are no less epic. And on the occasion of the tenth anniversary of the launch of one of the most successful voyages — is the Solar and Heliospheric Observatory, fondly known as SOHO — it is fitting that we recall those voyages to our life-giving star.

SOHO-- NASA press releaseIntrepid Solar Spacecraft Celebrates 10th Anniversary (NASA Feature)- November 29, 2005
The Solar and Heliospheric Observatory (SOHO) spacecraft celebrates its 10th anniversary December 2. The SOHO mission, a collaboration between NASA and the European Space Agency (ESA), has allowed scientists to make significant advances in understanding the closest star, our sun.

Sickening Solar Flares (NASA press release)- November 8, 2005
When the biggest solar proton storm in 15 years erupted in January, many were left wondering: what would have happened if astronauts were on the moon?

An Odd List of Body Parts (NASA press release)- October 26, 2005
Researchers are making a list: Which parts of an astronaut are most sensitive to solar flares?

NASA's Telescope for Students Reveals Record Solar Explosion Even More Powerful (NASA press release)- October 14, 2005Picture of Nov. 4, 2003 flare from SOHO spacecraft
Astronomers using an inexpensive NASA radio telescope kit for students discovered that the record solar flare on November 4, 2003 was even more powerful than originally estimated.

Who's Afraid of a Solar Flare? (NASA press release)- October 7, 2005
Solar activity can be surprisingly good for astronauts.

Spacecraft Pick up Earthly Aurora (NASA press release)- September 9, 2005
A coronal mass ejection (CME) hit Earth's magnetic field on Sept. 15, but it did not spark the strong display of auroras many people were hoping to see. In the CME's wake, however, a fast solar wind stream is blowing past Earth and buffeting our planet's magnetic field. This could cause mild geomagnetic storms.

Huge Solar Flares Continue (NASA press release)- September 7, 2005
Scientists are currently tracking a large sunspot that has so far unleashed seven major solar flares including an X-17-category blast on Sept. 7, an X-5 on Sept. 8, and an X-1 on Sept. 9. To say this is powerful is an understatement; Wednesday's X-17 flare was the fifth largest ever observed.

SOHO satellite image of the double CME on Aug. 22Double Solar Flare (NASA feature)- August 22, 2005
Yesterday, Aug. 22, a pair of coronal mass ejections (CMEs) blasted off the Sun and headed toward Earth. Geomagnetic storms and auroras are possible today, Aug. 23 and tomorrow, Aug. 24 in Alaska and Canada and possibly beyond.

Utah bathed in pretty pink Aurora (The Register Article)- August 22, 2005
Stargazers in Utah, Colorado, New York and other US states were treated to a rare display in the early hours of this morning, when the first of two large coronal mass ejections from the Sun collided with the Earth's atmosphere, creating stunning Auroras.

Scientists One Step Closer to Forecasting 'Clear Skies' for Astronauts (NASA feature)- August 16, 2005
Scientists funded by NASA's Living With a Star program have made a big stride forward in learning how to forecast "all clear" periods where severe space weather is unlikely.

CME- Live ScienceSun's Temper Blamed for Arctic Ozone Loss (Live Science Article)- March 1, 2005
A dramatic thinning of Earth's protective ozone layer above the Arctic last year was the result of intense upper-level winds and an extra dose of space weather, scientists said Tuesday.

Sickening Solar Flares - January 27, 2005
The biggest solar proton storm in 15 years erupted last week. NASA researchers discuss what it might have done to someone on the Moon.


Shields Up! - September 27, 2004
A breeze of interstellar helium atoms is blowing through the solar system.


The 2003 Mercury Transit - May 7, 2003

More about the Mercury Transit - May 7, 2003

SOHO Spies UFO? - January 17, 2003
Well, ah, maybe not - January 17, 2003

The Sun does the Wave - January 2, 2003
Wave-like Properties of Solar Supergranulation


Man on moon? How about Santa on sun? - December 26, 2002
A random arrangement of sunspots make the sun seem like a human visage, which solar scientists could not resist transforming into the most famous red face.

NASA selects campus team to design, direct major solar experiment - September 11, 2002

Massive Filament Sighted - July 17, 2002

Earth at Perhelion - June 17, 2002

Giant loops in the solar atmopshere may trigger Sun's magnetic poles reversals - June 2002


"Cool" microflares could be solar hot spots - June 1, 1999
Secret of coronal heating may be multitude of tiny blasts.

Finding the 'smoking gun' before it fires - March 9, 1999
Physicists discover a new tool for predicting solar eruptions

'S' marks the spot - March 9, 1999
Forecasting powerful solar explosions several days in advance may now be possible

Orbiting observatory SOHO finds source of high-speed "wind" blowing from the Sun - February 3, 1999


Twin Comets Impact Sun - June 3, 1998

Solar Flare Leaves Sun Quaking - May 27, 1998
Scientists have shown for the first time that solar flares produce seismic waves, and gigantic seismic quakes, in the Sun's interior

Solar Sounds Inspire Music - May, 27, 1998


Solar Mystery Nears Solution with Data from SOHO Spacecraft - November 12, 1997
The Sun's Newly-discovered Magnetic Carpet May Explain Coronal Heating

Jet Stream Runs Swiftly Inside the Sun - August 28, 1997

Water on the Sun? - July 17, 1997
Researchers Confirm that Water Exists On The Sun

Face on the Sun? - April 1, 1997
The King Lives on - in Sunspot Form!

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