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A full-disk multiwavelength extreme ultraviolet image of the sun taken by SDO on March 30, 2010. False colors trace different gas temperatures. Reds are relatively cool (about 60,000 Kelvin, or 59 726°C/107,540°F); blues and greens are hotter (greater than 1 million Kelvin, or 999 726°C/1,799,540°F). Credit: NASA
 
 
SDO First Light composite image from March 30, 2010
These six narrow-angle color images were made from the first ever 'portrait' of the solar system taken by Voyager 1, which was more than 4 billion miles from Earth and about 32 degrees above the ecliptic. The spacecraft acquired a total of 60 frames for a mosaic of the solar system which shows six of the planets. Mercury is too close to the sun to be seen. Mars was not detectable by the Voyager cameras due to scattered sunlight in the optics, and Pluto was not included in the mosaic because of its small size and distance from the sun. These blown-up images, left to right and top to bottom are Venus, Earth, Jupiter, and Saturn, Uranus, Neptune. The background features in the images are artifacts resulting from the magnification. The images were taken through three color filters -- violet, blue and green -- and recombined to produce the color images. Jupiter and Saturn were resolved by the camera but Uranus and Neptune appear larger than they really are because of image smear due to spacecraft motion during the long (15 second) exposure times. Earth appears to be in a band of light because it coincidentally lies right in the center of the scattered light rays resulting from taking the image so close to the sun. Earth was a crescent only 0.12 pixels in size. Venus was 0.11 pixel in diameter. The planetary images were taken with the narrow-angle camera (1500 mm focal length). Credit: NASA/JPL
 
 
Solar System Portrait - Views of 6 Planets
Credit: NASA/JPL/Universities Space Research Association/Lunar & Planetary Institute
 
 
Triton's 'Cantaloupe' Terrain
Credit: NASA/JPL/Universities Space Research Association/Lunar & Planetary Institute
 
 
Triton's Volcanic Plains #2
Credit: NASA/JPL/Universities Space Research Association/Lunar & Planetary Institute
 
 
Triton's Volcanic Plains
This is a composite of several images taken by the Extreme ultraviolet Imaging Telescope (EIT) on board SOHO, taken at a wavelength of 30.4 nanometres, shown in orange. It shows plasma at a temperature of about 60 000 – 80 000 Kelvin. The images were taken over an entire solar cycle and illustrate the changes in solar activity. Credits: SOHO/EIT (ESA & NASA)
 
 
Sun Over an Entire Cycle
A prototype Venus balloon in a JPL cleanroom. Image credit: NASA/JPL-Caltech
 
 
A Prototype Venus Balloon
Taken by Hinode's Solar Optical Telescope on Nov. 11, 2006, this image reveals the fine scale structure in the chromosphere that extends outward above the top of the convection cells, or granulation, of the photosphere. The structure results from the interaction of hot ionized gas with the magnetic field. Credit: JAXA/NASA
 
 
The Sun's Chromosphere
Taken by Hinode's Solar Optical Telescope on Nov. 20, 2006, this image reveals the structure of the solar magnetic field rising vertically from a sunspot, an area of strong magnetic field, outward into the solar atmosphere. At the edges of the sunspot the field lines bend over to reconnect with field of opposite polarity. Credit: JAXA/NASA
 
 
Magnetic Field Around a Sunspot
Taken by Hinode's Solar Optical Telescope on Jan. 12, 2007, this image of the sun reveals the filamentary nature of the plasma connecting regions of different magnetic polarity. Hinode captures these very dynamic pictures of the chromosphere. The chromosphere is a thin
 
 
Plasma of the Sun
This composite image shows Z Camelopardalis, or Z Cam, a double-star system featuring a collapsed, dead star, called a white dwarf, and a companion star, as well as a ghostly shell around the system. The massive shell provides evidence of lingering material ejected during and swept up by a powerful classical nova explosion that occurred probably a few thousand years ago. The image combines data gathered from the far-ultraviolet and near-ultraviolet detectors on NASA's Galaxy Evolution Explorer on Jan. 25, 2004. The orbiting observatory first began imaging Z Cam in 2003. Z Cam is the largest white object in the image, located near the center. Parts of the shell are seen as a lobe-like, wispy, yellowish feature below and to the right of Z Cam, and as two large, whitish, perpendicular lines on the left. The faint bluish streak in the bottom right corner of the image is ultraviolet light reflected by dust that may or may not be related to Z Cam. Numerous foreground and background stars and galaxies are visible as yellow and white spots. The yellow objects are strong near-ultraviolet emitters; blue features have strong far-ultraviolet emission; and white objects have nearly equal amounts of near-ultraviolet and far-ultraviolet emission. Image Credit: NASA/JPL-Caltech
 
 
Scene of Multiple Explosions
This enhanced image from the far-ultraviolet detector on NASA's Galaxy Evolution Explorer shows a ghostly shell of ionized gas around Z Camelopardalis, a binary, or double-star system featuring a collapsed, dead star known as a white dwarf, and a companion star. The image was processed to enhance the diffuse emissions from the shell. Z Cam is the bright object near the center of the image. Parts of the shell are seen as a lobe-like, light-blue feature below and to the right of Z Cam, and as two large, light blue, perpendicular lines on the left. The massive shell around Z Cam provides evidence of material ejected during and swept up by a powerful nova eruption, called a classical nova, which likely occurred a few thousand years ago. The Galaxy Evolution Explorer first began imaging Z Cam in 2003; this image was taken on Jan. 25, 2004. The type of emission found around Z Cam is most easily visible at far-ultraviolet wavelengths. Most of the background galaxies and stars have been eliminated by the image processing, although a few linger as white spots near the top. The light-blue streaky clump in the bottom right corner is created by ultraviolet light reflected by dust. It is uncertain if Z Cam is the source of the dust-scattered light. Image Credit: NASA/JPL-Caltech
 
 
Ghostly Remnant of an Explosive Past
A mosaic of the extreme ultraviolet images from STEREO's SECCHI/Extreme Ultraviolet Imaging Telescope taken on Dec. 4, 2006. These false color images show the sun's atmospheres at a range of different temperatures. Clockwise from top left: 1 million degrees C, 1.5 million C, 60,000-80,000), and 2.5 million C.
 
 
STEREO Sends Back First Solar Images
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