For the past 4 years, the two STEREO spacecraft have been moving away from the Earth and gaining a more complete picture of the sun. On February 6, 2011, NASA will reveal the first ever images of the entire sun and discuss the importance...

By partnering two spacecraft to view the sun simultaneously for the first time, NASA is providing a 3-D view of the ever-changing, turbulent solar atmosphere. This animation depicts one of the twin STEREO spacecraft as a stereographic...

April 21, 2012 marks the two-year anniversary of the Solar Dynamics Observatory (SDO) First Light press conference, where NASA revealed the first images taken by the spacecraft. This video highlights just some of the amazing events...

On Jan 30, 2014, beginning at 8:31 a.m EST, the moon moved between NASA's Solar Dynamics Observatory, or SDO, and the sun, giving the observatory a view of a partial solar eclipse from space. Such a lunar transit happens two to three...

On May 1, 2013, NASA's Solar Dynamics Observatory (SDO) watched as an active region just around the East limb (left edge) of the sun erupted with a huge cloud of solar material -- a heated, charged gas called plasma. This eruption,...

In March 2015, NASA will launch four identical spacecraft to study how magnetic fields around Earth connect and disconnect, explosively releasing energy -- a process known as magnetic reconnection. The Magnetospheric Multiscale, or MMS,...

On August 31, 2012 a long filament of solar material that had been hovering in the sun's atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled away from the sun at over 900 miles per...

Little SDO demonstrates just how much data he sends every day. Read about SDO's veritable avalanche of data:Or get tweeted by NASA:

A mid-level flare, an M6.5, erupted from the sun on April 2, 2014, peaking at 10:05 a.m. EDT. This video from NASA's Solar Dynamics Observatory shows the flare in a blend of two wavelengths of extreme ultraviolet light: 171 Angstroms and...

This movie shows 8 days – from Oct. 19-27, 2014 — in the life of the largest active region seen on the sun since 1990, including five X-class flares that erupted during that time.

This video is available in English and Spanish, both with English subtitles. El vídeo está disponible en español e inglés, ambas versiones con subtítulos en inglés. Todo el mundo está familiarizado con el clima de la Tierra pero, ¿cuánto...

NASA's Solar Dynamics Observatory (SDO) will study the sun in unprecedented detail and its effects on Earth. See SDO rolled through Goddard Space Flight Centers hallways, where it was built and tested, and prepared for transport to KSC....

The LASCO C3 coronograph on board the SOHO spacecraft has been watching the approach of Venus for its last solar transit until 2117. With coronagraphs, the Sun is being blocked by an occulting disk, seen here in blue, so that SOHO can...

Meet Little SDO! This comically animated version of NASA's Solar Dynamics Observatory is here to introduce you to all the great new ways we'll be looking at the sun and predicting how it will affect our lives on Earth. Or get tweeted by...

For the first time ever, NASA has obtained 3-D images of the dynamic churning atmosphere of the sun -- thanks to the two STEREO spacecraft launched in 2006. This new view will greatly aid scientists' ability to understand solar physics...

The sun erupted late on January 22, 2012 with an M8.7 class flare, an earth-directed coronal mass ejection (CME), and a burst of fast moving, highly energetic protons known as a "solar energetic particle" event. The latter has caused the...

The sun emitted a large flare on July 12, 2012, but earlier in the week it gave a demonstration of how gorgeous solar activity can be. This movie shows the sun from late July 8 to early July 10 shortly before it unleashed an X-class...

Sun Sends Out Moderate Solar Flare The sun emitted a moderate solar flare on July 19, 2012, beginning at 1:13 AM EDT and peaking at 1:58 AM. Solar flares are gigantic bursts of radiation that cannot pass through Earth's atmosphere to...

On March 2, 2012 a new active region on the sun, region 1429, rotated into view. It has let loose two M-class flares and one X-class so far. The M-class flares erupted on March 2 and on March 4. The third flare, rated an X1, peaked at...

The sun emitted a significant solar flare on Oct. 22, 2012, peaking at 11:17 p.m. EDT. The flare came from an active region on the left side of the sun that has been numbered AR 1598, which has already been the source of a number of...

A coronal mass ejection burst off the side of the sun on May 9, 2014. The giant sheet of solar material erupting was the first CME seen by NASA's Interface Region Imaging Spectrograph, or IRIS. The field of view seen here is about five...

Scientists from Durham University in the United Kingdom and NASA now propose that a universal mechanism can explain the whole spectrum of solar eruptions. They used 3-D computer simulations to demonstrate that a variety of eruptions can...

This 3-D video can be seen with red and cyan 3-D paper glasses. Launched ten years ago, on Oct. 25, 2006, the twin spacecraft of NASA’s STEREO mission – short for Solar and Terrestrial Relations Observatory – have given us unprecedented...

NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured images of the events. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect...