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NASA's Solar Dynamics Observatory shows that in just about seven hours, the SDO spacecraft saw the moon transit the Sun two times (Sept. 9-10, 2018).
NASA's Solar Dynamics Observatory shows that in just about seven hours, the SDO spacecraft saw the moon transit the Sun two times (Sept. 9-10, 2018).

Double Lunar Transit

NASA's Solar Dynamics Observatory zoomed in to watch close-up the dynamics of this single active region on the sun over a two-day period on July 14-16, 2018. These regions are often the sources of large eruptions that cause solar storms.
NASA's Solar Dynamics Observatory zoomed in to watch close-up the dynamics of this single active region on the sun over a two-day period on July 14-16, 2018. These regions are often the sources of large eruptions that cause solar storms.

Detailed Loops Above an Active Region

As an active region rotated into view, NASA's Solar Dynamics Observatory was able to observe well-defined magnetic loops gyrating above the sun between Mar, 23-24, 2017.
As an active region rotated into view, NASA's Solar Dynamics Observatory was able to observe well-defined magnetic loops gyrating above the sun between Mar, 23-24, 2017.

Dynamic Loops in Profile

These NASA Hubble Space Telescope pictures of comet Hale-Bopp show a remarkable 'pinwheel' pattern and a blob of free-flying debris near the nucleus.
These NASA Hubble Space Telescope pictures of comet Hale-Bopp show a remarkable 'pinwheel' pattern and a blob of free-flying debris near the nucleus.

Hubble Sees Material Ejected From Comet Hale-Bopp

This is a series of NASA Hubble Space Telescope observations of the region around the nucleus of Hale-Bopp, taken on eight different dates since September 1995.
This is a series of NASA Hubble Space Telescope observations of the region around the nucleus of Hale-Bopp, taken on eight different dates since September 1995.

Hubble Images of Comet Hale-Bopp

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

NASA's Solar Dynamics Observatory observes two relatively small prominences above the Sun's surface twisted and streamed charged particles over a 20-hour period July 30-31, 2018.
NASA's Solar Dynamics Observatory observes two relatively small prominences above the Sun's surface twisted and streamed charged particles over a 20-hour period July 30-31, 2018.

Twisting Prominences

NASA's Solar Dynamics Observatory, observed three distinct active regions with towering arches above them rotated into view over a three-day period (Sept. 24-26, 2017). To give some sense of scale, the largest arches rose up many times the size of Earth.
NASA's Solar Dynamics Observatory, observed three distinct active regions with towering arches above them rotated into view over a three-day period (Sept. 24-26, 2017). To give some sense of scale, the largest arches rose up many times the size of Earth.

Trio of Tempests

NASA's Solar Dynamics Observatory shows a minor eruption of charged particles rising up and twisting about before falling back into the Sun in this close-up of the Sun from a two-hour period on Aug. 13, 2018.
NASA's Solar Dynamics Observatory shows a minor eruption of charged particles rising up and twisting about before falling back into the Sun in this close-up of the Sun from a two-hour period on Aug. 13, 2018.

Twisting Outburst

NASA's Solar Dynamics Observatory shows that a large coronal hole began to emerge and intensify (Sept. 4-6, 2018).
NASA's Solar Dynamics Observatory shows that a large coronal hole began to emerge and intensify (Sept. 4-6, 2018).

Emerging Coronal Hole

On Sept. 10, 2017, NASA's Solar Dynamics Observatory, observed the Sun erupting with an X8 solar flare, one of the largest of the current solar cycle.
On Sept. 10, 2017, NASA's Solar Dynamics Observatory, observed the Sun erupting with an X8 solar flare, one of the largest of the current solar cycle.

Major Solar Flare

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

When an active region rotated over to the edge of the sun, it presented NASA's Solar Dynamics Observatory with a nice profile view of its elongated loops stretching and swaying above it (Mar. 8-9, 2017).
When an active region rotated over to the edge of the sun, it presented NASA's Solar Dynamics Observatory with a nice profile view of its elongated loops stretching and swaying above it (Mar. 8-9, 2017).

Stretched Loops

NASA's Solar Dynamics Observatory observed giant, bright coronal loops trace out the magnetic field lines above an active region from June 4-6, 2018.
NASA's Solar Dynamics Observatory observed giant, bright coronal loops trace out the magnetic field lines above an active region from June 4-6, 2018.

Ballet of Loops

This image from NASA's Solar Dynamics Observatory shows a broad coronal hole, the dominant feature this week on the sun on Nov. 7-9, 2017. It was easily recognizable as the dark expanse across the top of the sun and extending down in each side.
This image from NASA's Solar Dynamics Observatory shows a broad coronal hole, the dominant feature this week on the sun on Nov. 7-9, 2017. It was easily recognizable as the dark expanse across the top of the sun and extending down in each side.

Coronal Hole All Spread Out

NASA's Solar Dynamics Observatory observed the sun's only visible active region as it sputtered and spurted and eventually unleashed a small (C-class) flare on Feb. 7, 2018.
NASA's Solar Dynamics Observatory observed the sun's only visible active region as it sputtered and spurted and eventually unleashed a small (C-class) flare on Feb. 7, 2018.

One Small Flare

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

Flaring, active regions of our sun are highlighted in this image combining observations from several telescopes. During the observations, microflares went off, which are smaller versions of the larger flares that also erupt from the sun's surface.
Flaring, active regions of our sun are highlighted in this image combining observations from several telescopes. During the observations, microflares went off, which are smaller versions of the larger flares that also erupt from the sun's surface.

NuSTAR Stares at the Sun

NASA's Solar Dynamics Observatory observed a small eruption on Oct. 18, 2017. The source of the blast was just out of sight beyond the edge of the sun.
NASA's Solar Dynamics Observatory observed a small eruption on Oct. 18, 2017. The source of the blast was just out of sight beyond the edge of the sun.

Quick Solar Outburst

NASA's Solar Dynamics Observatory observed a partial eclipse that at its peak covered only about 14 per cent of the sun on Aug. 21, 2017.
NASA's Solar Dynamics Observatory observed a partial eclipse that at its peak covered only about 14 per cent of the sun on Aug. 21, 2017.

SDO Saw Only a Partial Eclipse

NASA's Solar Dynamics Observatory observed a small prominence rose up above the sun, appeared to twist around for several hours, and then began to send some streams of plasma back into the sun (Jan. 3-4, 2018).
NASA's Solar Dynamics Observatory observed a small prominence rose up above the sun, appeared to twist around for several hours, and then began to send some streams of plasma back into the sun (Jan. 3-4, 2018).

Small Twisting Prominence

This still image from an animation from NASA GSFC's Solar Dynamics Observatory shows dark strands of plasma hovering above the Sun's surface beginning to interact with each other in a form of tug of war over two and a half days (June 28-30, 2015).
This still image from an animation from NASA GSFC's Solar Dynamics Observatory shows dark strands of plasma hovering above the Sun's surface beginning to interact with each other in a form of tug of war over two and a half days (June 28-30, 2015).

Plasma Push and Pull

The sun featured just one, rather small active region over the past few days, but it developed rapidly and sported a lot of magnetic activity in just one day (Apr. 11-12, 2018) as observed by NASA's Solar Dynamics Observatory.
The sun featured just one, rather small active region over the past few days, but it developed rapidly and sported a lot of magnetic activity in just one day (Apr. 11-12, 2018) as observed by NASA's Solar Dynamics Observatory.

Small but Dynamic Active Region

NASA's Solar Dynamics Observatory captured agnetic arcs of plasma that spiraled above two active regions held their shape fairly well over 18 hours on Jan. 11-12, 2017.
NASA's Solar Dynamics Observatory captured agnetic arcs of plasma that spiraled above two active regions held their shape fairly well over 18 hours on Jan. 11-12, 2017.

Organized Arches

An eruption from the surface of the sun is conspicuous in the lower left portion of this July 6, 2015, image from NASA's Earth-orbiting Solar Dynamics Observatory (SDO).
An eruption from the surface of the sun is conspicuous in the lower left portion of this July 6, 2015, image from NASA's Earth-orbiting Solar Dynamics Observatory (SDO).

Solar Activity Seen at Sunspot Site Tracked by Mars Rover

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