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List		 Addition Date Target Mission InstrumentSort Ascending Size
Add Image to Favorite List 2009-08-19 Galaxy Evolution Explorer (GALEX)
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NASA's Galaxy Evolution Explorer spacecraft and Cerro Tololo Inter-American Observatory combined data making this diagram illustratrating the extent to which astronomers have been underestimating the proportion of small to big stars in certain galaxies.
PIA12174:
Adding up Stars in a Galaxy
Full Resolution:     TIFF (16.2 MB)     JPEG (226.5 kB)
Add Image to Favorite List 2009-08-19 Galaxy Evolution Explorer (GALEX)
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These two photographs were made by combining data from NASA's Galaxy Evolution Explorer spacecraft and the Cerro Tololo Inter-American Observatory in Chile to learn that not all galaxies make stars of different sizes in the same quantities.
PIA12175:
A Lesson in Counting Stars
Full Resolution:     TIFF (7.862 MB)     JPEG (328.4 kB)
Add Image to Favorite List 2011-04-08 Galaxy Evolution Explorer (GALEX)
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This artist's concept illustrates a young, red dwarf star surrounded by three planets. NASA's Galaxy Evolution Explorer is helping to identify young, red dwarf stars that are close to us by detecting their ultraviolet light.
PIA13994:
Planets Under a Red Sun (Artist's Concept)
Full Resolution:     TIFF (18 MB)     JPEG (293.7 kB)
Add Image to Favorite List 2011-05-19 Galaxy Evolution Explorer (GALEX)
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New results from NASA's Galaxy Evolution Explorer and the Anglo-Australian Telescope atop Siding Spring Mountain in Australia confirm that dark energy is a smooth, uniform force that now dominates over the effects of gravity.
PIA14094:
Dark Energy and Gravity: Yin and Yang of the Universe (Artist's Concept)
Full Resolution:     TIFF (37.75 MB)     JPEG (1.858 MB)
Add Image to Favorite List 2011-05-19 Galaxy Evolution Explorer (GALEX)
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This diagram based on results from NASA's Galaxy Evolution Explorer and the Anglo-Australian Telescope illustrates two ways to measure how fast the universe is expanding.
PIA14095:
How to Measure the Universe
Full Resolution:     TIFF (30.72 MB)     JPEG (575.1 kB)
Add Image to Favorite List 2012-05-02 Galaxy Evolution Explorer (GALEX)
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This computer-simulated image shows gas from a tidally shredded star falling into a black hole. Astronomers observed the flare in ultraviolet light using NASA's Galaxy Evolution Explorer.
PIA15429:
Black Hole Erupts Animation Icon
Full Resolution:     TIFF (1.875 MB)     JPEG (30.63 kB)
Add Image to Favorite List 2012-05-02 Galaxy Evolution Explorer (GALEX)
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These images, taken with NASA's Galaxy Evolution Explorer and the Pan-STARRS1 telescope in Hawaii, show a brightening inside a galaxy caused by a flare from its nucleus. The arrow in each image points to the galaxy.
PIA15620:
Black Hole Swallows a Star
Full Resolution:     TIFF (2.568 MB)     JPEG (109.1 kB)
Add Image to Favorite List 2007-11-14 Galaxy Evolution Explorer (GALEX)
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Evidence from NASA's Galaxy Evolution Explorer supports the long-held notion that many galaxies begin life as smaller spirals before transforming into larger, elliptical-shaped galaxies.
PIA15656:
Portrait of a Galaxy's Life
Full Resolution:     TIFF (21.6 MB)     JPEG (569.1 kB)
Add Image to Favorite List 2013-01-10 ESO Very Large Telescope
Galaxy Evolution Explorer (GALEX)
Spitzer Space Telescope
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This composite of the giant barred spiral galaxy NGC 6872 is 522,000 light-years across, making it about five times the size of the Milky Way.
PIA16613:
Dwarf Galaxy Spotted
Full Resolution:     TIFF (42.2 MB)     JPEG (752.2 kB)
Add Image to Favorite List 2013-01-10 Galaxy Evolution Explorer (GALEX)
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Computer simulations of the collision between NGC 6872 and IC 4970 reproduce the basic features of the galaxies as we see them today.
PIA16614:
Simulation of Galactic Collision (Simulation)
Full Resolution:     TIFF (10.35 MB)     JPEG (161.1 kB)
Add Image to Favorite List 2015-03-26 Galaxy Evolution Explorer (GALEX)
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A new study analyzes several sites where dead stars once exploded. The explosions, called Type Ia supernovae, occurred within galaxies, six of which are shown in these images from the Sloan Digital Sky Survey.
PIA18929:
After the Explosion: Investigating Supernova Sites
Full Resolution:     TIFF (4.322 MB)     JPEG (117.5 kB)
Add Image to Favorite List 2017-06-06 Galaxy Evolution Explorer (GALEX)
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This illustration shows a red dwarf star orbited by a hypothetical exoplanet. By mining data from NASA's GALEX spacecraft, a team of astronomers identified dozens of flares at a range of durations and strengths.
PIA21473:
Flaring Red Dwarf Star (Illustration)
Full Resolution:     TIFF (4.931 MB)     JPEG (202.8 kB)
Add Image to Favorite List 2020-11-18 Galaxy Evolution Explorer (GALEX)
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The Blue Ring Nebula consists of two expanding cones of gas ejected into space by a stellar merger. As the gas cools, it forms hydrogen molecules that collide with particles in interstellar space, causing them to radiate far-ultraviolet light.
PIA23867:
The Blue Ring Nebula
Full Resolution:     TIFF (26.12 MB)     JPEG (761.9 kB)
Add Image to Favorite List 2020-11-18 Galaxy Evolution Explorer (GALEX)
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The Blue Ring Nebula consists of two expanding cones of debris. The base of one cone is moving toward Earth. Both bases are outlined in magenta, revealing shockwaves created as the debris races through space.
PIA23868:
Geometry of the Blue Ring Nebula (Animation)
Full Resolution:     TIFF (2.374 MB)     JPEG (66.08 kB)
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