In just about seven hours, NASA's Solar Dynamics Observatory spacecraft saw the moon transit the Sun two times (Sept. 9-10, 2018). Transits occur when an object passes between a larger body and the viewer. The first transit lasted about an hour and covered 92 percent of the Sun at its peak. The second transit lasted about 50 minutes and covered just 34 percent of the Sun at its peak. The Moon appears to go in one direction in the first transit and the opposite direction in the second. This is because the SDO spacecraft orbits around Earth, moving in the same direction as the Moon but faster. On the first transit it catches up with and passes the Moon. As SDO swings back around the far side of Earth, it encounters the Moon again from the far side of Earth, where it appears to travel in the opposite direction. The images were taken in a wavelength of extreme ultraviolet light. None of this was visible from Earth. Movies are available at

In just about seven hours, NASA's Solar Dynamics Observatory spacecraft saw the moon transit the Sun two times (Sept. 9-10, 2018). Transits occur when an object passes between a larger body and the viewer. The first transit lasted about an hour and covered 92 percent of the Sun at its peak. The second transit lasted about 50 minutes and covered just 34 percent of the Sun at its peak. The Moon appears to go in one direction in the first transit and the opposite direction in the second. This is because the SDO spacecraft orbits around Earth, moving in the same direction as the Moon but faster. On the first transit it catches up with and passes the Moon. As SDO swings back around the far side of Earth, it encounters the Moon again from the far side of Earth, where it appears to travel in the opposite direction. The images were taken in a wavelength of extreme ultraviolet light. None of this was visible from Earth. Movies are available at
SuperStock offers millions of photos, videos, and stock assets to creatives around the world. This image of In just about seven hours, NASA's Solar Dynamics Observatory spacecraft saw the moon transit the Sun two times (Sept. 9-10, 2018). Transits occur when an object passes between a larger body and the viewer. The first transit lasted about an hour and covered 92 percent of the Sun at its peak. The second transit lasted about 50 minutes and covered just 34 percent of the Sun at its peak. The Moon appears to go in one direction in the first transit and the opposite direction in the second. This is because the SDO spacecraft orbits around Earth, moving in the same direction as the Moon but faster. On the first transit it catches up with and passes the Moon. As SDO swings back around the far side of Earth, it encounters the Moon again from the far side of Earth, where it appears to travel in the opposite direction. The images were taken in a wavelength of extreme ultraviolet light. None of this was visible from Earth. Movies are available at by Piemags/PL Photography Limited is available for licensing today.

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A solar flare erupts on Jan. 30, 2014, as seen by the bright flash on the left side of the sun, captured here by NASA's Solar Dynamics Observatory. In the lower right corner the moon can be seen, having just passed between the observatory and the sun. --- The sun emitted a mid-level solar flare, peaking at 11 11 a.m. EST on Jan. 30, 2014. Images of the flare were captured by NASA's Solar Dynamics Observatory, or SDO, shortly after the observatory witnessed a lunar transit. The black disk of the moon can be seen in the lower right of the images. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. To see how this event may impact Earth, please visit NOAA's Space Weather Prediction Center at a href= http //spaceweather.gov rel= nofollow spaceweather.gov /a , th
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NASAs Solar Dynamics Observatory, or SDO, captured this solar image on March 16, 2015, which clearly shows two dark patches, known as coronal holes. The larger coronal hole of the two, near the southern pole, covers an estimated 6- to 8-percent of the total solar surface. While that may not sound significant, it is one of the largest polar holes scientists have observed in decades. The smaller coronal hole, towards the opposite pole, is long and narrow. It covers about 3.8 billion square miles on the sun - only about 0.16-percent of the solar surface. Coronal holes are lower density and temperature regions of the suns outer atmosphere, known as the corona. Coronal holes can be a source of fast solar wind of solar particles that envelop the Earth. The magnetic field in these regions extends far out into space rather than quickly looping back into the suns surface. Magnetic fields that loop up and back down to the surface can be seen as arcs in non-coronal hole regions of the image, i
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A large coronal hole appears dark (such as this area in the top part of the Sun) when viewed in extreme ultraviolet light at 284 angstroms, such as this image taken by the Solar and Heliospheric Observatory (SOHO)'s EIT (Extreme ultraviolet Imaging Telescope). Coronal holes are sources of solar wind.
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NASA image captured June 5, 2012. On June 5-6 2012, SDO is collecting images of one of the rarest predictable solar events the transit of Venus across the face of the sun. This event happens in pairs eight years apart that are separated from each other by 105 or 121 years. The last transit was in 2004 and the next will not happen until 2117. i
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This image, is a composite of 23 separate images spanning the period of January 11, 2015 to January 21, 2016. It uses the SDO AIA wavelength of 171 angstroms and reveals the zones on the sun where active regions are most common during this part of the solar cycle. There are wallpapers sized for some phones and tablets available to download here a href=
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A solar flare bursts off the left limb of the sun in this image captured by NASA's Solar Dynamics Observatory on June 10, 2014, at 7 41 a.m. EDT. This is classified as an X2.2 flare, shown in a blend of two wavelengths of light 171 and 131 angstroms, colorized in gold and red, respectively.
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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.
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On Aug. 24, 2014, the sun emitted a mid-level solar flare, peaking at 8 16 a.m. EDT. NASA's Solar Dynamics Observatory captured images of the flare, which erupted on the left side of the sun. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at a href= http //spaceweather.gov rel= nofollow spaceweather.gov /a , the U.S. government's official source for space weather forecasts, alerts, watches and warnings. This flare is classified as an M5 flare. M-class flares are ten times less powerful than the most intense flares, called X-class flares.
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The dark region seen on the face of the sun at the end of March 2013 is a coronal hole (just above and to the right of the middle of the picture), which is a source of fast solar wind leaving the sun in this image from NASA's Solar Dynamic Observatory.
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NASA's Solar Dynamics Observatory captured this image of a mid-level solar flare - as seen in the bright flash in the middle -on Dec. 16, 2014 shortly before midnight EST. Read more a href= http //1.usa.gov/1BYLxsE rel= nofollow 1.usa.gov/1BYLxsE /a
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Caption This image from June 20, 2013, at 11 15 p.m. EDT shows the bright light of a solar flare on the left side of the sun and an eruption of solar material shooting through the suns atmosphere, called a prominence eruption. Shortly thereafter, this same region of the sun sent a coronal mass ejection out into space. --- On June 20, 2013, at 11 24 p.m., the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of particles into space that can reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Experimental NASA research models, based on observations from NASAs Solar Terrestrial Relations Observatory and ESA/NASAs Solar and Heliospheric Observatory show that the CME left the sun at speeds of around 1350 miles per second, which is a fast speed for CMEs. Earth-directed CMEs can cause a space
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The Solar Terrestrial Relations Observatory (STEREO) spacecraft Ahead observed in the 304 Angstrom wavelength an eruptive solar prominence on the edge of the Sun using its Extreme Ultraviolet Imager (EUVI).
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Extreme ultraviolet light streams out of an X-class solar flare as seen in this image captured on March 29, 2014, by NASA's Solar Dynamics Observatory. This image blends two wavelengths of light 304 and 171 Angstroms, which help scientists observe the lower levels of the sun's atmosphere. More info The sun emitted a significant solar flare, peaking at 1 48 p.m. EDT March 29, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. To see how this event impacted Earth, please visit NOAA's Space Weather Prediction Center at a href= http //spaceweather.gov rel= nofollow spaceweather.gov /a , the U.S. government's official source for space weather forecasts, alerts, watches and warnings. This f
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Caption An X-class solar flare erupted on the left side of the sun on the evening of Feb. 24, 2014. This composite image, captured at 7 59 p.m. EST, shows the sun in X-ray light with wavelengths of both 131 and 171 angstroms.
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