NASA's Spitzer Space Telescope (opens in new tab) launched in 2003 on a mission to study the universe in the infrared. Its mission will come to an end on Jan. 30, 2020, after 16 years of amazing images and scientific discoveries. Check out some of our favorite Spitzer images here.
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This infrared image from NASA's Spitzer Space Telescope in 2007 shows the Helix nebula, a cosmic starlet often photographed by amateur astronomers for its vivid colors and eerie resemblance to a giant eye.
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Supernova Remnant HGH 3
This supernova remnant, known as HBH 3, is one of the largest in the Milky Way galaxy and measures about 150 light-years across. It is also one of the oldest; the star that exploded to create this cosmic spectacle did so 80,000 to 1 million years ago. Spitzer captured this image in May 2010, and NASA released it on Aug. 2, 2018.
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Penguin and Egg Galaxies
The galaxies NGC 2336 and NGC 2937 look like a penguin and its egg, respectively, in this photo, which incorporates data from NASA's Hubble and Spitzer space telescopes.
Full Story: Galaxy Duo Looks Just Like a Penguin Guarding Its Egg (Photo) (opens in new tab)
The Sombrero Galaxy
The infrared vision of NASA's Spitzer Space Telescope has revealed that the Sombrero galaxy — named after its appearance in visible light to a wide-brimmed hat — is in fact two galaxies in one. It is a large elliptical galaxy (blue-green) with a thin disk galaxy (partly seen in red) embedded within. Previous visible-light images led astronomers to believe the Sombrero was simply a regular flat disk galaxy.
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Massive stars can wreak havoc on their surroundings, as can be seen in this new view of the Carina nebula from NASA's Spitzer Space Telescope. The bright star at the center of the nebula is Eta Carinae, one of the most massive stars in the galaxy. Its blinding glare is sculpting and destroying the surrounding nebula.
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The Cat's Paw Nebula
NASA's Spitzer Space Telescope captured this view of the Cat's Paw Nebula in 2018. The nebula gets its name from the bubbles of hot gas it contains that — if you squint a bit — resemble feline paw pads.
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The Dumbbell Nebula, also known as Messier 27, pumps out infrared light in this image from NASA's Spitzer Space Telescope. The nebula was named after its resemblance to a dumbbell as seen in visible light. It was discovered in 1764 by Charles Messier, who included it as the 27th member of his famous catalog of nebulous objects.
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Cepheus Stars and Green Nebulas
Because of its infrared sensitivity, Spitzer can get a stunning look at nebulas, the clouds of dust and gas peppered throughout the universe. The puffy green structures in the image above, released in 2019, are nebulas, with stars scattered within them, including a cluster called Cepheus C on the left and one called Cepheus B in the upper right corner.
Video: Cepheus Stars Observed by Spitzer Space Telescope (opens in new tab)
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This infrared image from NASA's Spitzer Space Telescope shows the Orion nebula, the closest massive star-making factory to Earth.
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Green Nebula Ring
A glowing ring spotted in space seems at first more like superhero fiction than science fact. But that's what NASA's Spitzer Space Telescope found in the murky clouds encircled by the tail of the constellation Scorpius. This photo of the bright emerald nebula, released in 2011, is reminiscent of the glowing ring wielded by the comic book superhero Green Lantern
Full Story: 'Green Lantern's Ring' Shines in NASA Space Photo (opens in new tab)
Spiral Galaxy Spider Web
Looking like a spider's web swirled into a spiral, the galaxy IC 342 presents its delicate pattern of dust in this image captured by NASA's Spitzer Space Telescope in 2011. Seen in infrared light, the faint starlight gives way to the glowing bright patterns of dust found throughout the galaxy's disk.
Full Story: Spiral Galaxy Glows Like a Cosmic Spider Web (opens in new tab)