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NASA's Solar Dynamics Observatory spied a substantial coronal hole begin to rotate into view over Dec. 1-2, 2016. Coronal holes are magnetically open areas of the sun's magnetic field structure that spew streams of high speed solar wind into space.
NASA's Solar Dynamics Observatory spied a substantial coronal hole begin to rotate into view over Dec. 1-2, 2016. Coronal holes are magnetically open areas of the sun's magnetic field structure that spew streams of high speed solar wind into space.

Coronal Hole Coming Around

NASA's Solar Dynamics Observatory spied a substantial coronal hole begin to rotate into view over Dec. 1-2, 2016. Coronal holes are magnetically open areas of the sun's magnetic field structure that spew streams of high speed solar wind into space.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21208
Added: 2016-12-06

Views: 112

Coronal Hole Coming Around

NASA's Solar Dynamics Observatory spied a substantial coronal hole begin to rotate into view over Dec. 1-2, 2016. Coronal holes are magnetically open areas of the sun's magnetic field structure that spew streams of high speed solar wind into space.

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NASA's Solar Dynamics Observatory spied the sun as it was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) while gradually marching toward solar minimum.
NASA's Solar Dynamics Observatory spied the sun as it was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) while gradually marching toward solar minimum.

Almost Spotless

NASA's Solar Dynamics Observatory spied the sun as it was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) while gradually marching toward solar minimum.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21207
Added: 2016-11-30

Views: 87

Almost Spotless

NASA's Solar Dynamics Observatory spied the sun as it was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) while gradually marching toward solar minimum.

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Two good-sized coronal holes have rotated around to the center of the sun where they will be spewing solar wind towards Earth were observed by NASA's Solar Dynamics Observatory on Nov. 8-9, 2016.
Two good-sized coronal holes have rotated around to the center of the sun where they will be spewing solar wind towards Earth were observed by NASA's Solar Dynamics Observatory on Nov. 8-9, 2016.

Earth-Facing Coronal Holes

Two good-sized coronal holes have rotated around to the center of the sun where they will be spewing solar wind towards Earth were observed by NASA's Solar Dynamics Observatory on Nov. 8-9, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA16909
Added: 2016-11-09

Views: 177

Earth-Facing Coronal Holes

Two good-sized coronal holes have rotated around to the center of the sun where they will be spewing solar wind towards Earth were observed by NASA's Solar Dynamics Observatory on Nov. 8-9, 2016.

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A minor solar eruption triggered a crackling, white flash that sent an expanding wave of plasma below it over about six hours in this observation from NASA's Solar Dynamics Observatory on Nov. 4, 2016.
A minor solar eruption triggered a crackling, white flash that sent an expanding wave of plasma below it over about six hours in this observation from NASA's Solar Dynamics Observatory on Nov. 4, 2016.

Small Surf

A minor solar eruption triggered a crackling, white flash that sent an expanding wave of plasma below it over about six hours in this observation from NASA's Solar Dynamics Observatory on Nov. 4, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21202
Added: 2016-11-04

Views: 154

Small Surf

A minor solar eruption triggered a crackling, white flash that sent an expanding wave of plasma below it over about six hours in this observation from NASA's Solar Dynamics Observatory on Nov. 4, 2016.

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NASA's Solar Dynamics Observatory compares very large coronal holes taken Oct. 27, 2016. Coronal holes are areas of open magnetic field that carry solar wind out into space, currently causing a lot of geomagnetic activity here on Earth.
NASA's Solar Dynamics Observatory compares very large coronal holes taken Oct. 27, 2016. Coronal holes are areas of open magnetic field that carry solar wind out into space, currently causing a lot of geomagnetic activity here on Earth.

Wavelength Comparison

NASA's Solar Dynamics Observatory compares very large coronal holes taken Oct. 27, 2016. Coronal holes are areas of open magnetic field that carry solar wind out into space, currently causing a lot of geomagnetic activity here on Earth.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA15377
Added: 2016-10-27

Views: 190

Wavelength Comparison

NASA's Solar Dynamics Observatory compares very large coronal holes taken Oct. 27, 2016. Coronal holes are areas of open magnetic field that carry solar wind out into space, currently causing a lot of geomagnetic activity here on Earth.

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NASA's Solar Dynamics Observatory spies a pair of large coronal holes which rotated into view over the past few days (Oct. 20-21, 2016).
NASA's Solar Dynamics Observatory spies a pair of large coronal holes which rotated into view over the past few days (Oct. 20-21, 2016).

Substantial Coronal Holes

NASA's Solar Dynamics Observatory spies a pair of large coronal holes which rotated into view over the past few days (Oct. 20-21, 2016).

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA15378
Added: 2016-10-21

Views: 182

Substantial Coronal Holes

NASA's Solar Dynamics Observatory spies a pair of large coronal holes which rotated into view over the past few days (Oct. 20-21, 2016).

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An active region, just rotating into view on Oct. 4, 2016, gave NASA's Solar Dynamics Observatory a perfect view of the tussle of magnetic field lines above it.
An active region, just rotating into view on Oct. 4, 2016, gave NASA's Solar Dynamics Observatory a perfect view of the tussle of magnetic field lines above it.

Agitated Active Region

An active region, just rotating into view on Oct. 4, 2016, gave NASA's Solar Dynamics Observatory a perfect view of the tussle of magnetic field lines above it.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21109
Added: 2016-10-11

Views: 190

Agitated Active Region

An active region, just rotating into view on Oct. 4, 2016, gave NASA's Solar Dynamics Observatory a perfect view of the tussle of magnetic field lines above it.

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A prominence observed along the right edge of the sun rose up and then most of it bent back down to the surface, as seen by NASA's Solar Dynamics Observatory on Oct. 4, 2016.
A prominence observed along the right edge of the sun rose up and then most of it bent back down to the surface, as seen by NASA's Solar Dynamics Observatory on Oct. 4, 2016.

Bendable Prominence

A prominence observed along the right edge of the sun rose up and then most of it bent back down to the surface, as seen by NASA's Solar Dynamics Observatory on Oct. 4, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21106
Added: 2016-10-04

Views: 165

Bendable Prominence

A prominence observed along the right edge of the sun rose up and then most of it bent back down to the surface, as seen by NASA's Solar Dynamics Observatory on Oct. 4, 2016.

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When an active region rotated into a profile view, NASA's Solar Dynamics Observatory was able to capture the magnificent loops arching above an active region (Sept. 28-29, 2016). The Earth was inset to give a sense of the scale of these towering arches.
When an active region rotated into a profile view, NASA's Solar Dynamics Observatory was able to capture the magnificent loops arching above an active region (Sept. 28-29, 2016). The Earth was inset to give a sense of the scale of these towering arches.

Magnetic Field Arches

When an active region rotated into a profile view, NASA's Solar Dynamics Observatory was able to capture the magnificent loops arching above an active region (Sept. 28-29, 2016). The Earth was inset to give a sense of the scale of these towering arches.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21101
Added: 2016-09-29

Views: 217

Magnetic Field Arches

When an active region rotated into a profile view, NASA's Solar Dynamics Observatory was able to capture the magnificent loops arching above an active region (Sept. 28-29, 2016). The Earth was inset to give a sense of the scale of these towering arches.

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On Sept. 18-21,2016 NASA's Solar Dynamics Observatory spotted a dark coronal hole that was facing towards Earth for several days spewing streams of solar wind in our direction.
On Sept. 18-21,2016 NASA's Solar Dynamics Observatory spotted a dark coronal hole that was facing towards Earth for several days spewing streams of solar wind in our direction.

Earth-Directed Coronal Hole

On Sept. 18-21,2016 NASA's Solar Dynamics Observatory spotted a dark coronal hole that was facing towards Earth for several days spewing streams of solar wind in our direction.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21067
Added: 2016-09-21

Views: 262

Earth-Directed Coronal Hole

On Sept. 18-21,2016 NASA's Solar Dynamics Observatory spotted a dark coronal hole that was facing towards Earth for several days spewing streams of solar wind in our direction.

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On Sept. 12-14,2016 NASA's Solar Dynamics Observatory spotted a series of active regions stretched along the right side of the sun exhibited a wide variety of loops cascading above them. Earth quickly passed in front of a portion of the sun.
On Sept. 12-14,2016 NASA's Solar Dynamics Observatory spotted a series of active regions stretched along the right side of the sun exhibited a wide variety of loops cascading above them. Earth quickly passed in front of a portion of the sun.

Varietal Loops

On Sept. 12-14,2016 NASA's Solar Dynamics Observatory spotted a series of active regions stretched along the right side of the sun exhibited a wide variety of loops cascading above them. Earth quickly passed in front of a portion of the sun.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA16997
Added: 2016-09-15

Views: 326

Varietal Loops

On Sept. 12-14,2016 NASA's Solar Dynamics Observatory spotted a series of active regions stretched along the right side of the sun exhibited a wide variety of loops cascading above them. Earth quickly passed in front of a portion of the sun.

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The two most noteworthy features on the sun this week were a pair of elongated filaments, as seen by NASA's Solar Dynamics Observatory on Sept. 8, 2016.
The two most noteworthy features on the sun this week were a pair of elongated filaments, as seen by NASA's Solar Dynamics Observatory on Sept. 8, 2016.

Two Long Filaments

The two most noteworthy features on the sun this week were a pair of elongated filaments, as seen by NASA's Solar Dynamics Observatory on Sept. 8, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA16996
Added: 2016-09-08

Views: 318

Two Long Filaments

The two most noteworthy features on the sun this week were a pair of elongated filaments, as seen by NASA's Solar Dynamics Observatory on Sept. 8, 2016.

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NASA's Solar Dynamics Observatory (SDO) saw both the Moon (upper right) and the Earth (upper left) partially block the sun (Sept. 1, 2016 at 7:33 UT). Just before this image was taken, the Earth totally blocked the sun for a while.
NASA's Solar Dynamics Observatory (SDO) saw both the Moon (upper right) and the Earth (upper left) partially block the sun (Sept. 1, 2016 at 7:33 UT). Just before this image was taken, the Earth totally blocked the sun for a while.

Double Eclipse

NASA's Solar Dynamics Observatory (SDO) saw both the Moon (upper right) and the Earth (upper left) partially block the sun (Sept. 1, 2016 at 7:33 UT). Just before this image was taken, the Earth totally blocked the sun for a while.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21028
Added: 2016-09-01

Views: 396

Double Eclipse

NASA's Solar Dynamics Observatory (SDO) saw both the Moon (upper right) and the Earth (upper left) partially block the sun (Sept. 1, 2016 at 7:33 UT). Just before this image was taken, the Earth totally blocked the sun for a while.

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Several times a day for a few days this week the Earth completely blocked the Sun for about an hour due to NASA's Solar Dynamics Observatory orbital path (Aug. 25, 2016).
Several times a day for a few days this week the Earth completely blocked the Sun for about an hour due to NASA's Solar Dynamics Observatory orbital path (Aug. 25, 2016).

Eclipse Season for SDO

Several times a day for a few days this week the Earth completely blocked the Sun for about an hour due to NASA's Solar Dynamics Observatory orbital path (Aug. 25, 2016).

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21027
Added: 2016-08-25

Views: 754

Eclipse Season for SDO

Several times a day for a few days this week the Earth completely blocked the Sun for about an hour due to NASA's Solar Dynamics Observatory orbital path (Aug. 25, 2016).

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Strands and arches of plasma streamed above the edge of the Sun for over a day, pulled by powerful magnetic forces Aug. 11-12, 2016., observed by NASA's Solar Dynamics Observatory.
Strands and arches of plasma streamed above the edge of the Sun for over a day, pulled by powerful magnetic forces Aug. 11-12, 2016., observed by NASA's Solar Dynamics Observatory.

Playing Along the Edge

Strands and arches of plasma streamed above the edge of the Sun for over a day, pulled by powerful magnetic forces Aug. 11-12, 2016., observed by NASA's Solar Dynamics Observatory.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA17913
Added: 2016-08-13

Views: 444

Playing Along the Edge

Strands and arches of plasma streamed above the edge of the Sun for over a day, pulled by powerful magnetic forces Aug. 11-12, 2016., observed by NASA's Solar Dynamics Observatory.

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The Sun produced three M-class (medium-sized) flares in less than 13 hours and the third one had an interesting flourish at the end (July 22-23, 2016). These were the largest flares the Sun had produced this year as seen by NASA's Solar Dynamics Observato
The Sun produced three M-class (medium-sized) flares in less than 13 hours and the third one had an interesting flourish at the end (July 22-23, 2016). These were the largest flares the Sun had produced this year as seen by NASA's Solar Dynamics Observato

Solar Flares with some Flair

The Sun produced three M-class (medium-sized) flares in less than 13 hours and the third one had an interesting flourish at the end (July 22-23, 2016). These were the largest flares the Sun had produced this year as seen by NASA's Solar Dynamics Observato

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA17912
Added: 2016-07-23

Views: 369

Solar Flares with some Flair

The Sun produced three M-class (medium-sized) flares in less than 13 hours and the third one had an interesting flourish at the end (July 22-23, 2016). These were the largest flares the Sun had produced this year as seen by NASA's Solar Dynamics Observato

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One broad active region sported a wonderful example of coiled magnetic field lines over almost a four-day period observed by NASA's Solar Dynamics Observatory during July 15-18, 2016.
One broad active region sported a wonderful example of coiled magnetic field lines over almost a four-day period observed by NASA's Solar Dynamics Observatory during July 15-18, 2016.

Magnetic Coiling

One broad active region sported a wonderful example of coiled magnetic field lines over almost a four-day period observed by NASA's Solar Dynamics Observatory during July 15-18, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA17911
Added: 2016-07-18

Views: 376

Magnetic Coiling

One broad active region sported a wonderful example of coiled magnetic field lines over almost a four-day period observed by NASA's Solar Dynamics Observatory during July 15-18, 2016.

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One active region at the edge of the Sun pushed out about ten thrusts of plasma in just over a day long period as observed by NASA's Solar Dynamics Observatory on July 9-10, 2016.
One active region at the edge of the Sun pushed out about ten thrusts of plasma in just over a day long period as observed by NASA's Solar Dynamics Observatory on July 9-10, 2016.

Weak Thrusts

One active region at the edge of the Sun pushed out about ten thrusts of plasma in just over a day long period as observed by NASA's Solar Dynamics Observatory on July 9-10, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA20883
Added: 2016-07-09

Views: 338

Weak Thrusts

One active region at the edge of the Sun pushed out about ten thrusts of plasma in just over a day long period as observed by NASA's Solar Dynamics Observatory on July 9-10, 2016.

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Several arcing loops rotated into view and swirled above an active region, which gave us a nice profile view of the action from NASA's Solar Dynamics Observatory on June 26-27, 2016.
Several arcing loops rotated into view and swirled above an active region, which gave us a nice profile view of the action from NASA's Solar Dynamics Observatory on June 26-27, 2016.

Bright Arcing Loops

Several arcing loops rotated into view and swirled above an active region, which gave us a nice profile view of the action from NASA's Solar Dynamics Observatory on June 26-27, 2016.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA20882
Added: 2016-06-27

Views: 355

Bright Arcing Loops

Several arcing loops rotated into view and swirled above an active region, which gave us a nice profile view of the action from NASA's Solar Dynamics Observatory on June 26-27, 2016.

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A close-up of twisting plasma above the Sun's surface produced a nice display of turbulence by caused combative magnetic forces (June 7-8, 2016) over a day and a half as seen by NASA's Solar Dynamics Observatory.
A close-up of twisting plasma above the Sun's surface produced a nice display of turbulence by caused combative magnetic forces (June 7-8, 2016) over a day and a half as seen by NASA's Solar Dynamics Observatory.

Twisting Plasma

A close-up of twisting plasma above the Sun's surface produced a nice display of turbulence by caused combative magnetic forces (June 7-8, 2016) over a day and a half as seen by NASA's Solar Dynamics Observatory.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA20739
Added: 2016-06-08

Views: 453

Twisting Plasma

A close-up of twisting plasma above the Sun's surface produced a nice display of turbulence by caused combative magnetic forces (June 7-8, 2016) over a day and a half as seen by NASA's Solar Dynamics Observatory.

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A substantial coronal hole had rotated so that it temporarily faced right towards Earth (May, 17-19, 2016). This coronal hole area is the dark area at the top center of this image from NASA's Solar Dynamics Observatory.
A substantial coronal hole had rotated so that it temporarily faced right towards Earth (May, 17-19, 2016). This coronal hole area is the dark area at the top center of this image from NASA's Solar Dynamics Observatory.

Coronal Hole Front and Center

A substantial coronal hole had rotated so that it temporarily faced right towards Earth (May, 17-19, 2016). This coronal hole area is the dark area at the top center of this image from NASA's Solar Dynamics Observatory.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA15379
Added: 2016-05-18

Views: 919

Coronal Hole Front and Center

A substantial coronal hole had rotated so that it temporarily faced right towards Earth (May, 17-19, 2016). This coronal hole area is the dark area at the top center of this image from NASA's Solar Dynamics Observatory.

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On May 9, 2016, Mercury passed directly between the Sun and Earth, making a transit of the Sun. Mercury transits happen about 13 times each century. NASA's SDO studies the Sun 24/7 and captured the eight-hour event.
On May 9, 2016, Mercury passed directly between the Sun and Earth, making a transit of the Sun. Mercury transits happen about 13 times each century. NASA's SDO studies the Sun 24/7 and captured the eight-hour event.

Mercury Transit Across the Sun

On May 9, 2016, Mercury passed directly between the Sun and Earth, making a transit of the Sun. Mercury transits happen about 13 times each century. NASA's SDO studies the Sun 24/7 and captured the eight-hour event.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA14729
Added: 2016-05-09

Views: 961

Mercury Transit Across the Sun

On May 9, 2016, Mercury passed directly between the Sun and Earth, making a transit of the Sun. Mercury transits happen about 13 times each century. NASA's SDO studies the Sun 24/7 and captured the eight-hour event.

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This still image from an animation from NASA's GSFC's Solar Dynamics Observatory shows arches of magnetic field lines towered over the edge of the Sun as a pair of active regions began to rotate into view (Apr. 5-6, 2016).
This still image from an animation from NASA's GSFC's Solar Dynamics Observatory shows arches of magnetic field lines towered over the edge of the Sun as a pair of active regions began to rotate into view (Apr. 5-6, 2016).

Towering Arches

This still image from an animation from NASA's GSFC's Solar Dynamics Observatory shows arches of magnetic field lines towered over the edge of the Sun as a pair of active regions began to rotate into view (Apr. 5-6, 2016).

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA20604
Added: 2016-04-06

Views: 634

Towering Arches

This still image from an animation from NASA's GSFC's Solar Dynamics Observatory shows arches of magnetic field lines towered over the edge of the Sun as a pair of active regions began to rotate into view (Apr. 5-6, 2016).

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NASA's Solar Dynamics Observatory shows a long coronal hole has rotated so that was temporarily facing right towards Earth (Mar. 23-25, 2016). Coronal holes appear dark when viewed in some wavelengths of extreme ultraviolet light.
NASA's Solar Dynamics Observatory shows a long coronal hole has rotated so that was temporarily facing right towards Earth (Mar. 23-25, 2016). Coronal holes appear dark when viewed in some wavelengths of extreme ultraviolet light.

Elongated Coronal Hole

NASA's Solar Dynamics Observatory shows a long coronal hole has rotated so that was temporarily facing right towards Earth (Mar. 23-25, 2016). Coronal holes appear dark when viewed in some wavelengths of extreme ultraviolet light.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA19178
Added: 2016-03-24

Views: 555

Elongated Coronal Hole

NASA's Solar Dynamics Observatory shows a long coronal hole has rotated so that was temporarily facing right towards Earth (Mar. 23-25, 2016). Coronal holes appear dark when viewed in some wavelengths of extreme ultraviolet light.

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The magnetic field lines of three active regions in close proximity to one another interacted with each other over two and a half days (Feb. 8-10, 2016). This image is from NASA's Solar Dynamics Observatory.
The magnetic field lines of three active regions in close proximity to one another interacted with each other over two and a half days (Feb. 8-10, 2016). This image is from NASA's Solar Dynamics Observatory.

Solar Triumvirate

The magnetic field lines of three active regions in close proximity to one another interacted with each other over two and a half days (Feb. 8-10, 2016). This image is from NASA's Solar Dynamics Observatory.

Target: Sun
Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA20474
Added: 2016-02-09

Views: 618

Solar Triumvirate

The magnetic field lines of three active regions in close proximity to one another interacted with each other over two and a half days (Feb. 8-10, 2016). This image is from NASA's Solar Dynamics Observatory.

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