Evidence from NASA's Wide-field Infrared Survey Explorer and Galaxy Evolution Explorer missions provide support for the 'inside-out' theory of galaxy evolution, which holds that star formation starts at the core of the galaxy and spreads outward.
NEOWISE: Back to Hunt More Asteroids (Artist Concept)
This artist's concept shows the NASA's WISE spacecraft, in its orbit around Earth. In September of 2013, engineers will attempt to bring the mission out of hibernation to hunt for more asteroids and comets in a project called NEOWISE.
This image shows our own back yard, astronomically speaking, from a vantage point about 30 light-years away from the sun. It highlights the population of tiny brown dwarfs recently discovered by NASA's WISE. The image simulates actual positions of stars.
NEOWISE, the asteroid-hunting portion of NASA's WISE mission, illustrates the differences between orbits of a typical near-Earth asteroid (blue) and a potentially hazardous asteroid, or PHA (orange). PHAs are a subset of the near-Earth asteroids (NEAs).
This image from NASA's WISE spacecraft shows a blazar, a voracious supermassive black hole inside a galaxy with a jet that happens to be pointed right toward Earth. Active black holes are often found at the hearts of elliptical galaxies.
Mapping the Infrared Universe: The Entire WISE Sky -- Rectangular Format
This mosaic of images covering the entire sky was observed by NASA's WISE telescope and is part of its All-Sky Data Release. The projection used in this image of the sky is called an 'equirectangular.'
Mapping the Infrared Universe: The Entire WISE Sky
This is a mosaic of the images covering the entire sky as observed by NASA's Wide-field Infrared Survey Explorer (WISE), part of its All-Sky Data Release. In this mosaic, the Milky Way Galaxy runs horizontally across the map.
Listed as Cassiopeia A, this remnant of the supernova is one of the brightest radio sources in the known universe. More recently, NASA's WISE telescope detected infrared echoes of the flash of light rippling outwards from the supernova.
This enormous section of the Milky Way galaxy is a mosaic of images from NASA's Wide-field Infrared Survey Explorer. The constellations Cassiopeia and Cepheus are featured in this 1,000-square degree expanse.
This view from NASA's Wide-field Infrared Survey Explorer takes in an area of the sky in the constellation of Scorpius surrounding Jabbah (Arabic name means 'the forehead of the scorpion') which is larger than a grid of eight by eight full moons.
NASA's Wide-field Infrared Survey Explorer observed the star-forming cloud NGC 281 in the constellation of Cassiopeia as it appears to be chomping through the cosmos, earning it the nickname the 'Pacman' nebula.
Infrared images from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer are combined in this image of RCW 86, the dusty remains of the oldest documented example of an exploding star, or supernova.
Data from NASA's Wide-field Infrared Survey Explorer has led to revisions in the estimated population of near-Earth asteroids. The most accurate survey to date has allowed new estimates of the total numbers of objects in different size categories.
This chart based on data from NASA's Wide-field Infrared Survey Explorer illustrates how infrared is used to more accurately determine an asteroid's size; three asteroids of different sizes can look similar when viewed in visible-light.
This chart based on data from NASA's Wide-field Infrared Survey Explorer illustrates why infrared-sensing telescopes are more suited to finding small, dark asteroids than telescopes that detect visible light.
This infrared image from NASA's Wide-field Infrared Survey Explorer shows exceptionally cold, dense cloud cores seen in silhouette against the bright diffuse infrared glow of the plane of the Milky Way galaxy.