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Use the search bar above to find specific subjects — try queries like "Apollo 11," "Hubble Deep Field," "Mars surface," or "astronaut EVA." You can also filter by media type (image, video, or audio). For a daily curated experience, visit the Astronomy Picture of the Day.
Showing results for "solar observatory"
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The sun is always changing and NASA's Solar Dynamics Observatory is always watching. Launched on Feb. 11, 2010, SDO...
Over the past week, the single, largest feature on the sun was a long coronal hole that stretched out across more...
A substantial coronal hole began to rotate into view over the past few days (Dec. 1-2, 2016). Coronal holes are...
The difference in features that are visible in different wavelengths of extreme ultraviolet light can be stunning as...
For much of this week the sun featured three substantial coronal holes (Apr. 3-6, 2018). Coronal holes appear as...
With no active regions currently on the face of the sun, a bristling active region has begun to rotate into view...
Over a three-week period (July 3-24, 2018), the Sun produced just one small, short-lived sunspot -- but it tells a...
This profile perspective of an active region revealed above it (June 24-25, 2018). Charged particles spinning along...
A prominence at the sun's edge shifted and slithered back and forth over a one-day period (Nov. 29-30, 2017)....
The sun has had no sunspots for almost two weeks (as of Feb. 1, 2018) and just has a single, tiny one that appeared...
A small prominence observed in profile arched up and sent streams of plasma curling back into the sun over a 30-hour...
A small prominence slowly rose further up above the sun, then fell apart and back into the sun over about seven...
A large coronal hole stands out as the most obvious feature on the sun this week (Oct. 12-13, 2017). The dark...
Several short stalks of cooler, darker plasma spun and twisted as they interacted with each other at the sun's edge...
The large sunspot (called AR2665) that rotated out of view about two weeks ago has returned (Aug. 1-2, 2017). Though...
Oddly enough, an elongated coronal hole (the darker area near the center) seems to shape itself into a single,...
A small prominence rose up above the sun, appeared to twist around for several hours, and then began to send some...
This sequence of images shows the sun from its surface to its upper atmosphere all taken at about the same time...
A prominence rose up above the sun, sent an arch of plasma to link up magnetically with an active region over a...
A small prominence hovered above the sun's surface over a two-day period (June 12-14, 2018) before breaking off into...
The sun emitted a significant solar flare, peaking at 7:42 a.m. EDT on June 10, 2014. NASA's Solar Dynamics...
Early in the morning of Sept. 1, 2016, NASA’s Solar Dynamics Observatory, or SDO, caught both the Earth and moon...
An extensive equatorial coronal hole has rotated so that it is now facing Earth (May 2-4, 2018). The dark coronal...
April 21, 2011 marks the one-year anniversary of the Solar Dynamics Observatory (SDO) First Light press conference,...