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A textbook illustration of a pulsar.
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This object resembles a tilted open clamshell with a pearl in the center. The two halves of the shape have curved stripes that start as a bold, dark blue on the outside and move inward towards the center, getting brighter and lighter. In the center is a bright white circle with transparent yellow beams emerging from its sides.
Pulsar (Version One)
An illustration of ESA's LISA Pathfinder spacecraft.
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This illustration shows ESA's LISA Pathfinder spacecraft in shades of blue. The craft has an octagonal shape with a relatively flat "face" with smaller components found around the sides of the spacecraft.
LISA (Laser Interferometer Space Antenna) Pathfinder
An illustration of a planetary nebula.
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A subtly transparent, colorful hourglass shape has a central point that is a white circle surrounded by bright, white haze. Extending outward from the center in opposite directions are plums of color that form the hourglass shape. The central part of each plume starts as an icy, light blue and fades upward into a purple color and outward into red. White dots representing stars speckle the image.
Planetary Nebula (Version Two, Purple)
An illustration of ESA's Planck spacecraft.
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This illustration shows ESA's Planck spacecraft in shades of blue. The craft has a circular base topped by a short instrument with an open top and instrument pieces visible inside.
Planck
An illustration showing an irregular galaxy.
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An amorphous, bean-shaped diffuse purple blob that's darker around the rim with a light, whitish center. White dots representing stars speckle the image.
Irregular Galaxy (Version Three)
An illustration showing a blue, front view of a barred spiral galaxy.
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A background of medium, bright blue shows a bright, white, thin line that creates an oblong, elongated swirl that connects in the middle with a lighter blue, diffuse cloud. White dots representing stars speckle the image.
Barred Spiral Galaxy (Front View, Blue)
An illustration of an orange elliptical galaxy.
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A diffuse oval is outlined by dark orange but gets progressively lighter in rings towards the center, a bright white spot surrounded by a small ring of white haze. White dots representing stars speckle the image.
Elliptical Galaxy (Orange)
An illustration of the ASCA spacecraft, developed by the Institute of Space and Astronautical Science in Japan.
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A graphic of ASCA is shown in light and dark shades of blue. The body of the spacecraft is bottle shaped, and an array of solar panels crosses on top of the widest part.
ASCA (Advanced Satellite for Cosmology and Astrophysics)
An illustration of NASA's Chandra spacecraft.
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A graphic of Chandra is shown in light and dark blue with a long, cylindrical main body. At the front of this cylinder is a darker circle. Jutting off of the front of the main body are two "wings" of solar arrays.
Chandra X-ray Observatory
An illustration showing a purple, side view of a barred spiral galaxy.
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An illustration has an elongated oval in light purple stretching across the center, outlined in light blue. Behind the strip is a diffuse, yellowish cloud of color that fades into a medium, bright purple. All over the image are white speckles, representing stars.
Barred Spiral Galaxy (Side View, Purple)
An illustration of NASA’s CGRO spacecraft.
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A graphic of CGRO is shown in light and dark shades of blue. The body of the spacecraft is rectangular, topped with two circular objects. Solar panels extend to either side, and a long pole with a small satellite dish at the end extends from the front end of the spacecraft.
CGRO (Compton Gamma-Ray Observatory)
An illustration of NASA’s BurstCube spacecraft.
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A graphic of BurstCube is shown in light and dark shades of blue. The satellite’s body is rectangular, with the long side facing the viewer. Solar panels are attached to the short, left-hand side.
BurstCube
An illustration of an orange and yellow elliptical galaxy.
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A diffuse oval is outlined by a light orange-ish yellow but gets progressively lighter in rings towards the center, a bright white spot surrounded by a small ring of white haze. White dots representing stars speckle the image.
Elliptical Galaxy (Orange/Yellow)
An illustration of the HaloSat spacecraft.
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This HaloSat illustration shows the space telescope in shades of blue. The body of the spacecraft is a rectangle with three circles along the long, narrow side. One solar panel extends from the spacecraft body.
HaloSat
An illustration of NASA’s Kepler Space Telescope.
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This illustration shows NASA's Kepler mission in shades of blue. The main body of the spacecraft is cylindrical in shape, with a slanted top and a base that attaches to a structure wrapping around half of the main body of the craft.
Kepler Space Telescope
An illustration of NASA's Swift observatory.
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This illustration shows the Swift observatory in shades of blue. A multi-sided cylindrical body is flanked by two solar array "wings." The front face has a large squared-off half-circle instrument, two small cylindrical telescopes, and a shield along the top edge.
Neil Gehrels Swift Observatory
An illustration of a planetary nebula.An illustration of a planetary nebula. The colors depicted in this illustration are for artistic purposes only.
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A transparent, colorful hourglass shape has a central point that is a white circle surrounded by bright, light haze. Extending out from the center in opposite directions are plumes of color that form the hourglass shape. Each starts as blue near the central circle, then fades into a purplish pink color. The outline of the hourglass shape is wavy and white dots representing stars speckle the image.
Planetary Nebula (Version Two, Pink)
An illustration showing an edge-on view of a black hole.
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A graphic shows a central black circle outlined in white. This circle is surrounded by a black ring which is surrounded by a light blue ring which then fades outward into bright and then dark and diffuse purple. Across the middle of the image is a light blue line that gives the appearance of a ring around the circular object.
Black Hole (Side View)
An illustration of ESA's XMM Newton observatory.
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This illustration shows ESA's XMM-Newton observatory in shades of blue. Overall, the craft is dragonfly-shaped with a long, cylindrical body and an open "head" from which two solar array "wings" extend.
XMM Newton (X-ray Multi-Mirror Mission Newton)
An illustration of a blazar, or an active galactic nucleus that emits a powerful radiation jet. 
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A graphic shows a diffused, dark purple ring that fades inward to a bright purple, a lighter purple, and eventually to a light blue gradient. At the center of the circular object is a small black circle from which a transparent beam is emitted, starting as a transparent blue and moving into green, yellow, orange and red.
Blazar
An illustration of a yellow  elliptical galaxy.
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A diffuse oval is outlined by light yellow but gets progressively more opaque moving towards the center, a bright white spot surrounded by a small ring of white haze. White dots representing stars speckle the image.
Elliptical Galaxy (Yellow)
An illustration showing the side of a blue spiral galaxy.
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A horizontal oval is outlined by diffused, dark blue surrounding a brighter blue which fades to be lighter and brighter as it moves inward. The center of the shape is a hazy white circle. Cutting across the center of the image is a flattened disc outlined in dark blue with a light blue center. White dots representing stars speckle the image.
Spiral Galaxy (Side View, Blue)
An illustration of a blue star-forming nebula.
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A large, amorphous blob in a subtle tear drop shape has layers of transparent, hazy color overlapping. The different layers are a range of transparent blues, some greener shades than others. While white dots representing stars speckle the whole image, in the center of this shape is a bright white oval cloud with more pronounced and larger stars grouped together.
Star-forming Nebula (Version One, Blue)
A circular illustration of a supernova.
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A large circular shape with rounded waves around the edge, this graphic gives the appearance of a flower. Smaller transparent circles with the same wavy edge are layered inward to create an inner starburst shape. While the outer rings are a muddy, light red color, the inner starburst shape is a darker color with green around its edge and dark blue in the center. White dots representing stars speckle the image.
Supernova (Red)
An illustration of a short gamma-ray burst caused by merging neutron stars.
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At the center of this graphic of a short gamma-ray burst is a black dot representing a black hole. A cloud of debris, represented as a yellow-ish filled-in figure eight is centered on the black hole and tilted 45 degrees to the right. A pair of white-ish, cone-shaped jets are aligned with the figure eight and extend above and below the black holes. Additional debris is represented as a blue oval and a filled-in eternity symbol, both centered on the black hole and tilted 45 degrees to the left.
Short Gamma-Ray Burst From Merging Neutron Stars

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