August 22, 2017

SDO’s View of the August 21 Solar Eclipse

A movie of the Aug 21, 2017 lunar transit as viewed by the Solar Dynamics Observatory (SDO.)  Credit: NASA/SDO The Sun appears in visible light, and 171 ångstrom extreme ultraviolet light. The movie shows the Sun moving a bit because […]
April 21, 2017

Solar Dynamics Observatory (SDO) – Year 7

The Solar Dynamics Observatory (SDO) has now captured nearly seven years worth of ultra-high resolution solar footage. This time-lapse shows that full run from two of SDO’s instruments. CREDIT: NASA/Goddard Space Flight Center/SDO, Music: “Web of Intrigue” from Killer Tracks. The […]
October 22, 2014

AR12192: The Largest Sunspot Group of Solar Cycle 24

Since rotating into view, the sunspot group AR12192 has continued to grow in size and complexity, becoming the largest sunspot of the current solar cycle, cycle 24 (SC24.) The region has produced numerous C and M-class flares including an X1 flare. As […]
June 10, 2014

Double X! AR12087 Produces Back-to-back X Flares

Just after the X2.2 AR12087 let out an X1.5 flare peaking at 12:52 UT. Here is a snapshot of the event using the SDO/AIA 131 angstrom channel. This shows plasmas with temperatures up to about 10 million Kelvin. The […]
April 21, 2014

Solar Dynamics Observatory (SDO) – Year 4

Massive solar flares, graceful eruptions of solar material, and an enormous sunspot make up some of the imagery captured by NASA’s Solar Dynamics Observatory during its fourth year in orbit. CREDIT: NASA/Goddard Space Flight Center/SDO, Music: Stella Maris courtesy of Moby […]
February 1, 2014

AR11967 Continues its Flaring and AR11968 Sends a CME Our Way

 There are two main active regions (ARs 11967/11968) on the sun and both are giving a moderate show. AR11967 continues to produce C- and M-level events, including an M3.0 flare at 07:14 UT Feb. 1, 2014. The region continues to show signs […]
January 29, 2014

A Long Lunar Transit for SDO – Jan. 30, 2014

UPDATES 16:17 UT (11:17 UT) – The transit ends with a bang! – an M6.6 flare peaked at 16:11 from AR11967. These images are from just before the flare peak at around 16:00 UT (11:00 EST) again in all 9 SDO/AIA wavelengths. […]
November 15, 2013

Coming and Going: Two Weeks of Magnetic Spots and Loops

When sunspots rotate onto the solar disk facing Earth they are identified by their structure in white or visible light. Sunspots are regions of concentrated magnetic field. They are like complicated clusters of bar magnets on their sides. Some are […]
October 30, 2013

A Whole Lot Happening on the Sun – In Many Types of Light

The sun has been really active lately. SDO gives us an amazing view of this activity in many different wavelengths of light. This also shows us the sun’s atmosphere in many temperatures ranging from ~4500 Kelvin or 7600 degrees Fahrenheit […]
September 30, 2013

Spectacular Erupting Filament with Earth-directed Space Weather

A huge filament erupted from the sun producing a beautiful coronal mass ejection (CME) and solar energetic particle event. Around 21 UT, 9/29/2013 a filament erupted from the northwest quadrant of the sun. It started from the surface with a […]
August 20, 2013

Aurora Ahead? – Filament Eruption with an Earth-directed CME

There may be a geomagnetic storm in store for Earth. Lookout aurora watchers! A filament ~50 Earths in length (~400,000 miles) erupted from the Sun’s southern hemisphere in the southwest direction around 7:24 UT (4:24 am EDT). The eruption produced […]
May 10, 2013

Solar Dynamics Observatory (SDO) – Year 3

NASA's Goddard Space Flight Center heliophysicist C. Alex Young highlights many interesting aspects of the Solar Dynamics Observatory (SDO) images and points out several of the single-frame events that appear in it. This video shows those three years of the sun at a pace of two images per day.
July 12, 2012

Earth Bound CME Predicted with X1 Flare Event

Possible Moderate to Severe Geomagnetic Storm Sunspot group, AR11520, produced an X1.4 solar flare, peaking in the NOAA GOES X-ray monitor at 16:52 UT (12:52 EDT). This flash of electromagnetic radiation temporarily altered the upper atmosphere changing its ability to […]
April 21, 2012

Solar Dynamics Observatory (SDO) – Year 2

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 witnessed in SDO’s second […]
April 17, 2012

Beautiful Eruptions from the East Limb of the Sun

An eruption of plasma from just behind the solar limb observed by SDO with the 304 Angstrom camera.This shows material at temperatures around 60,000-80,000 Kelvin. This produced a CME that went out the left side (East) of the Sun starting around 2 UT. At ~1000 km/s the CME has a SCORE O (for ordinary). NASA produced a computer model predicting the CME will impact STEREO Behind on 4/17 at 7:40 UT (but not Earth).
March 14, 2012

Unidentified Sun Object is Identified! A Little Black Spot on The Sun Today

On March 12, 2012, Sunsflare posted a video asking if anyone could identify a circular object seen in SDO coronal images. The video was also posted on Facebook with the same question posed. I answered the question on Facebook but […]
December 15, 2011

Lovejoy’s Last Day – Unprecedented Multi-spacecraft Observations of a Comet’s Demise (Surprise filled update 12/16/2011)

UPDATE: Lovejoy survived despite most predictions to the contrary! Check out the videos below. A sungrazing comet called Lovejoy is near what will surely be its end. Sungrazers melted by the Sun is not really new. In fact, SOHO has become […]
May 20, 2011

Connecting the Spots (SDO Pick of the Week – May 20, 2011)

An extensive series of arcs, observed in profile, can be seen making a long distance connection between two active regions (Mar. 15-17, 2011). As SDO observed in extreme ultraviolet light, a series of magnetic field lines generated a well-defined pathway […]
December 12, 2010

Epic Solar Filament Eruption from Dec. 6, 2010 Seen by STEREO

A very long solar filament that had been snaking around the Sun erupted (Dec. 6, 2010) with a flourish. STEREO (Behind) caught the action in dramatic detail in extreme ultraviolet light of Helium. It had been almost a million km […]
November 8, 2010

Another Lunar Transit of the Sun Seen by SDO

As expected SDO experienced another lunar transit on November 6, 2010. This time the moon crossed the southern hemisphere moving from the south pole towards the northeast (left side) edge of the sun. The transit took about 30 minutes and […]
October 11, 2010

Increased Auroral Activity Oct. 11-12 from a Halo CME Oct. 6, 2010

Around 3:30 UT on October 6, 2010 a filament erupted in the northeast part of the solar disk (upper left area). Moving at around 375 km/s (850,000 miles per hour) the CME combined with the ambient solar wind then over […]
October 7, 2010

A Solar Eruption as the Earth Blocks SDO’s View of the Sun

A filament erupted in the NE area of the sun. The eruption was observed by SDO and the associated Halo CME was seen by SOHO's C2 and C3 coronagraphs. SDO is currently in eclipse season so during this event the earth moved between SDO and the sun, moving across the sun for a few minutes.