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Apollo 11 Mission image - Mare Fecunditatis and Secchi K
Apollo 11 Mission image...
 
Year 1969
Apollo 11 Mission image - Start TO 80 and Secchi
Apollo 11 Mission image...
 
Year 1969
A close up view of the top of the Sun as seen in profile shows thousands of little spurts, like small blow torches, shooting out all over the Sun. The movie shows just an average day's worth of this kind of activity as seen from the STEREO spacecraft (Ahead) in extreme ultraviolet light (August 3, 2007). These spurts are called spicules. With STEREO's 2048×2048 image resolution and an image every 10 minutes, we can zoom in on features like this with no distortion. Spicules are plasma jets that shoot through the Sun's atmosphere or corona at about 90,000 kilometers per hour. Discovered in 1877 by Angelo Secchi, they remain largely unexplained, in part because observations are difficult for objects with a brief life (about 5 minutes) and relatively small size (diameters of just 300 miles / 500 kilometers). They are caused by shock waves formed when sound waves at the solar surface leak into the solar atmosphere. More than 100,000 spicules occur at any given time on our star's surface.
A close up view of the ...
Image
 
Description A close up view of the top of the Sun as seen in profile shows thousands of little spurts, like small blow torches, shooting out all over the Sun. The movie shows just an average day's worth of this kind of activity as seen from the STEREO spacecraft (Ahead) in extreme ultraviolet light (August 3, 2007). These spurts are called spicules. With STEREO's 2048×2048 image resolution and an image every 10 minutes, we can zoom in on features like this with no distortion. Spicules are plasma jets that shoot through the Sun's atmosphere or corona at about 90,000 kilometers per hour. Discovered in 1877 by Angelo Secchi, they remain largely unexplained, in part because observations are difficult for objects with a brief life (about 5 minutes) and relatively small size (diameters of just 300 miles / 500 kilometers). They are caused by shock waves formed when sound waves at the solar surface leak into the solar atmosphere. More than 100,000 spicules occur at any given time on our star's surface.
*Captions:* * Blue (171 Angstroms) full disk image: The Sun's million degree atmosphere taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. The close-up of the active region is cropped from the full disk image. * Blue (171 Angstroms): The Sun's million degree atmosphere taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. Close-up of the active region cropped from the full disk image. * Orange (304 Angstroms) full disk: The orange image shows portions of the sun's atmosphere at 60,000 to 80,000 C taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.tif ] (1.7M) [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.tif ] (920K) [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.tif ] (3.8M) *Captions:* * Green (195 Angstroms) full disk: The Sun in light emitted at 1.5 million degrees C taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. * SOHO's full disk magnetogram: Taken Dec. 4, this image shows the magnetic features on the Sun's surface. Taken by SOHO's MDI instrument. * The first coronal mass ejection (CME) observed by STEREO. This image was taken on Dec. 9 with STEREO's SECCHI/Cor2 coronagraph. A coronagraph blocks the bright disk of the sun allowing scientists to see the Sun's faint outer atmosphere, the corona. The white circle shows the location of the solar disk. The mass ejection can be seen on the right hand side of the image as outward directed streak ending in a faint ring.
*Captions:* * Blue (171...<a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.jpg"></a><a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.tif"></a><a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.jpg"></a><a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.tif"></a><a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.jpg"></a><a target="_blank" href="http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.tif"></a>
Image
 
Description *Captions:* * Blue (171 Angstroms) full disk image: The Sun's million degree atmosphere taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. The close-up of the active region is cropped from the full disk image. * Blue (171 Angstroms): The Sun's million degree atmosphere taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. Close-up of the active region cropped from the full disk image. * Orange (304 Angstroms) full disk: The orange image shows portions of the sun's atmosphere at 60,000 to 80,000 C taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/halfres_195col_ed.tif ] (1.7M) [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/SOHOmdi_mag_light.tif ] (920K) [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.jpg ] Hi-res TIF image [ http://sohowww.nascom.nasa.gov/pickoftheweek/old/22dec2006/cor2pretty2_ed.tif ] (3.8M) *Captions:* * Green (195 Angstroms) full disk: The Sun in light emitted at 1.5 million degrees C taken on Dec. 4 by STEREO's SECCHI/EUVI telescope. * SOHO's full disk magnetogram: Taken Dec. 4, this image shows the magnetic features on the Sun's surface. Taken by SOHO's MDI instrument. * The first coronal mass ejection (CME) observed by STEREO. This image was taken on Dec. 9 with STEREO's SECCHI/Cor2 coronagraph. A coronagraph blocks the bright disk of the sun allowing scientists to see the Sun's faint outer atmosphere, the corona. The white circle shows the location of the solar disk. The mass ejection can be seen on the right hand side of the image as outward directed streak ending in a faint ring.
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