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After Hours

Amazing images from the Spitzer Space Telescope

By Selena Frye November 12, 2008, 3:00 AM PST

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Amazing images from the Spitzer Space Telescope

Spitzer Space Telescope

Spitzer Space Telescope

Here is just a sample of the amazing images captured by The Spitzer Space Telescope, launched into space by a Delta rocket from Cape Canaveral, Florida on 25 August 2003.

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For full details on each image in this gallery, follow the link in each image caption.

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All of the images and captions are used courtesy of NASA/JPL-Caltech.

Amazing images from the Spitzer Space Telescope

Splendid Splinter

Splendid Splinter

The spiral galaxy NGC 5907, sometimes known as the “Splinter Galaxy” because of its unusual appearance, is located in the constellation Draco. It is fairly bright, and appears elongated because it has an edge-on alignment when viewed from Earth. It also has a strong set of dust lanes, visible in this image from NASA’s Spitzer Space Telescope as red features.

The central lane is so pronounced at visible light wavelengths, where it blocks our view of the starlight, that the galaxy was once mistaken for two objects and given two entries in the original New General Catalogue. The catalogue, published by J.L.E. Dreyer in 1888, was an attempt to collect a complete list of all nebulae and star clusters known at the time.

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Spiral galaxy NGC 1566

Spiral galaxy NGC 1566

This beautiful spiral galaxy NGC 1566, located approximately 60 million light-years away in the constellation Dorado was captured by the Spitzer Infrared Nearby Galaxies Survey (SINGS) Legacy Project using the telescope’s Infrared Array Camera (IRAC).

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The faint blue light is coming from mature stars, while the “glowing” red spiral arms indicate active star formation and dust emission. Much of the active star formation is seen in the two symmetric arms that are reminiscent of other grand design spirals such as the Whirlpool galaxy. The small and very luminous blue nucleus suggests that this is a Seyfert galaxy (a galaxy that is actively emitting radiation from a very small region in its core).

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Cosmic tornado

Cosmic tornado

This “tornado,” designated Herbig-Haro 49/50, is shaped by a cosmic jet packing a powerful punch as it plows through clouds of interstellar gas and dust.

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The tornado-like feature is actually a shock front created by a jet of material flowing downward through the field of view. A still-forming star located off the upper edge of the image generates this outflow. The jet slams into neighboring dust clouds at a speed of more than 100 miles per second, heating the dust to incandescence and causing it to glow with infrared light detectable by Spitzer. The triangular shape results from the wake created by the jet’s motion, similar to the wake behind a speeding boat.

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The scientists could only speculate about the source of the spiral appearance. Magnetic fields throughout the region might have shaped the object. Alternatively, the shock might have developed instabilities as it plowed into surrounding material, creating eddies that give the “tornado” its distinctive appearance.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Double Helix Nebula

Double Helix Nebula

The spots are infrared-luminous stars, mostly red giants and red supergiants. Many other stars are present in this region, but are too dim to appear even in this sensitive infrared image.nnThe double helix nebula is approximately 300 light-years from the enormous black hole at the center of the Milky Way. (The Earth is more than 25,000 light-years from the black hole at the galactic center.)nnThis false-color image was taken by the Multiband Imaging Photometer for Spitzer (MIPS).n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Amazing Andromeda Galaxy

Amazing Andromeda Galaxy

Spitzer’s super-sensitive infrared eyes show Andromeda’s relatively “cool” side, which includes embryonic stars hidden in their dusty cocoons.

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Galaxy Evolution Explorer detected young, hot, high-mass stars, which are represented in blue, while populations of relatively older stars are shown as green dots. The bright yellow spot at the galaxy’s center depicts a particularly dense population of old stars.

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Swaths of red in the galaxy’s disk indicate areas where Spitzer found cool, dusty regions where stars are forming. These stars are still shrouded by the cosmic clouds of dust and gas that collapsed to form them.

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Located 2.5 million light-years away, the Andromeda is our largest nearby galactic neighbor. The galaxy’s entire disk spans about 260,000 light-years, which means that a light beam would take 260,000 years to travel from one end of the galaxy to the other. By comparison, our Milky Way galaxy’s disk is about 100,000 light-years across.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Classic beauty M51

Classic beauty M51

M51, whose name comes from being the 51st entry in Charles Messier’s catalog, is considered to be one of the classic examples of a spiral galaxy. At a distance of about 30 million light years from Earth, it is also one of the brightest spirals in the night sky. A composite image of M51, also known as the Whirlpool Galaxy, shows the majesty of its structure in a dramatic new way through several of NASA’s orbiting observatories.

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he textbook spiral structure is thought be the result of an interaction M51 is experiencing with its close galactic neighbor, NGC 5195, which is seen just above. Some simulations suggest M51’s sharp spiral shape was partially caused when NGC 5195 passed through its main disk about 500 million years ago. This gravitational tug of war may also have triggered an increased level of star formation in M51. The companion galaxy’s pull would be inducing extra starbirth by compressing gas, jump-starting the process by which stars form.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Messier 81

Messier 81

The magnificent spiral arms of the nearby galaxy Messier 81 are highlighted in this NASA Spitzer Space Telescope image. Located in the northern constellation of Ursa Major (which also includes the Big Dipper), this galaxy is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light-years.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Tarantula Nebula

Tarantula Nebula

NASA’s Spitzer Space Telescope has captured in stunning detail the spidery filaments and newborn stars of the nnTarantula Nebula, a rich star-forming region also known as 30 Doradus. This cloud of glowing dust and gas is located in the Large Magellanic Cloud, the nearest galaxy to our own Milky Way, and is visible primarily from the Southern Hemisphere. This image of an interstellar cauldron provides a snapshot of the complex physical processes and chemistry that govern the birth — and death — of stars.

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At the heart of the nebula is a compact cluster of stars, known as R136, which contains very massive and young stars. The brightest of these blue supergiant stars are up to 100 times more massive than the Sun, and are at least 100,000 times more luminous. These stars will live fast and die young, at least by astronomical standards, exhausting their nuclear fuel in a few million years.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Hidden black holes

Hidden black holes

Astronomers have probed the deep sky with NASA’s three Great Observatories for hidden black holes and come to the conclusion that most black holes cannot be seen in visible images. The image on the left from NASA’s Hubble Space Telescope shows 1/200 of the full field of sky known as the Great Observatories Origins Deep Survey, or GOODS. It highlights three X-ray sources (circled) and many other galaxies. The image on the right is made up of data from Hubble and NASA’s Spitzer Space Telescope and shows the same region. The two “hard” X-ray sources (sources detected only at the shortest X-ray wavelengths and indicated here with yellow circles) are very faint in the visible but much more luminous in the infrared. This data suggests that the X-ray sources are black holes hidden behind a screen of dust.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Morphology of our galaxy's 'Twin'

Morphology of our galaxy's 'Twin'

NASA’s Spitzer Space Telescope has captured these infrared images of a nearby spiral galaxy that resembles our own Milky Way. The targeted galaxy, known as NGC 7331 and sometimes referred to as our galaxy’s twin, is found in the constellation Pegasus at a distance of 50 million light-years. This inclined galaxy was discovered in 1784 by William Herschel, who also discovered infrared light.

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Three other galaxies are seen below NGC 7331, all about 10 times farther away. From left to right are NGC 7336, NGC 7335 and NGC 7337. The blue dots scattered throughout the images are foreground stars in the Milky Way; the red ones are galaxies that are even more distant.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Ring of stellar death

Ring of stellar death

This false-color image from NASA’s Spitzer Space Telescope shows a dying star (center) surrounded by a cloud of glowing gas and dust. Thanks to Spitzer’s dust-piercing infrared eyes, the new image also highlights a never-before-seen feature — a giant ring of material (red) slightly offset from the cloud’s core. This clumpy ring consists of material that was expelled from the aging star.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Fire within the Antennae galaxies

Fire within the Antennae galaxies

This false-color image from NASA’s Spitzer Space Telescope reveals hidden populations of newborn stars at the heart of the colliding “Antennae” galaxies. These two galaxies, known individually as NGC 4038 and 4039, are located around 68 million light-years away and have been merging together for about the last 800 million years. The latest Spitzer observations provide a snapshot of the tremendous burst of star formation triggered in the process of this collision, particularly at the site where the two galaxies overlap.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

'Galactic Ghoul' rears its spooky head

'Galactic Ghoul' rears its spooky head

Resembling a ghoul with two hollow eyes and a screaming mouth, this masked cloud of newborn stars was uncovered by Spitzer’s heat-seeking infrared eyes.nnThe spooky cloud — a nebula called “DR 6” residing in the plane of our Milky Way galaxy — is home to a cluster of about 10 massive newborn stars, ranging in size from 10 to 20 times the mass of our Sun. The nebular “eyes” and “mouth” were carved out by intense heat and winds, which shoot outward from the stars (located in the central bar or “nose”). The green material remaining in the eyes and mouth is comprised of gas, while the red regions and tendrils beyond make up the dusty cloud that originally gave birth to the young stars.

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DR 6 is located 3,900 light-years away in the constellation Cygnus. The distance from one end of its central bar to the other is the about 3.5 light-years, or about the same distance from our Sun to its nearest neighbor, Alpha Centauri.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Mysterious Whirlpool Galaxy

Mysterious Whirlpool Galaxy

The targeted galaxy is known by various names: M51 from its Messier catalog designation, and also as NGC 5194. M51 was one of the original discoveries of Charles Messier, found in October 1773 while he was observing a faint comet. The Messier catalogue of galaxies is named after him. Colloquially, M51 is also known as the “Whirlpool Galaxy”, or “Rosse’s Galaxy,” after Lord Rosse, who first detected galaxy spiral structure in his observations of M51. The companion, NGC 5195, was discovered in 1781 by Pierre Mechain.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Stellar 'incubators' seen cooking up stars

Stellar 'incubators' seen cooking up stars

This image composite compares visible-light and infrared views from NASA’s Spitzer Space Telescope of the glowing Trifid Nebula, a giant star-forming cloud of gas and dust located 5,400 light-years away in the constellation Sagittarius.

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The embryos are indicated with arrows in the false-color Spitzer picture (right), taken by the telescope’s infrared array camera. The same embryos cannot be seen in the visible-light pictures (left). Spitzer found clusters of embryos in two of the cores and only single embryos in the other two. This is one of the first times that multiple embryos have been observed in individual cores at this early stage of stellar development.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Towering infernos

Towering infernos

This majestic false-color image from NASA’s Spitzer Space Telescope shows the “mountains” where stars are born. Dubbed “Mountains of Creation” by Spitzer scientists, these towering pillars of cool gas and dust are illuminated at their tips with light from warm, embryonic stars.

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The new infrared picture is reminiscent of Hubble’s iconic visible-light image of the Eagle Nebula (inset), which also features a star-forming region, or nebula, that is being sculpted into pillars by radiation and winds from hot, massive stars. The pillars in the Spitzer image are part of a region called W5, in the Cassiopeia constellation 7,000 light-years away and 50 light-years across. They are more than 10 times in the size of those in the Eagle Nebula (shown to scale here).

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

First map of alien world

First map of alien world

This is the first-ever map of the surface of an exoplanet, or a planet beyond our solar system. The map, which shows temperature variations across the cloudy tops of a gas giant called HD 189733b, is made up of infrared data taken by NASA’s Spitzer Space Telescope. Hotter temperatures are represented in brighter colors.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Baby picture of our solar system

Baby picture of our solar system

A rare, infrared view of a developing star and its flaring jets taken by NASA’s Spitzer Space Telescope shows us what our own solar system might have looked like billions of years ago. In visible light, this star and its surrounding regions are completely hidden in darkness.nnStars form out of spinning clouds, or envelopes, of gas and dust. As the envelopes flatten and collapse, jets of gas stream outward and a swirling disk of planet-forming material takes shape around the forming star. Eventually, the envelope and jets disappear, leaving a newborn star with a suite of planets. This process takes millions of years.n

Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Anatomy of a busted comet

Anatomy of a busted comet

NASA’s Spitzer Space Telescope captured the picture on the left of comet Holmes in March 2008, five months after the comet suddenly erupted and brightened a millionfold overnight. The contrast of the picture has been enhanced on the right to show the anatomy of the comet.

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Every six years, comet 17P/Holmes speeds away from Jupiter and heads inward toward the sun, traveling the same route typically without incident. However, twice in the last 116 years, in November 1892 and October 2007, comet Holmes mysteriously exploded as it approached the asteroid belt. Astronomers still do not know the cause of these eruptions.

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Courtesy NASA/JPL-Caltech

Amazing images from the Spitzer Space Telescope

Quartz-like Crystals Found in Planetary Quartz-like crystals found in planetary disks

Quartz-like Crystals Found in Planetary Quartz-like crystals found in planetary disks

NASA’s Spitzer Space Telescope has, for the first time, detected tiny quartz-like crystals sprinkled in young planetary systems. The crystals, which are types of silica minerals called cristobalite and tridymite, can be seen close-up in the black-and-white insets (cristobalite is on the left, and tridymite on the right). The main picture is an artist’s concept of a young star and its swirling disk of planet-forming materials.n

Courtesy NASA/JPL-Caltech

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By Selena Frye
Selena Frye is a former Senior Editor for TechRepublic. Her background is in technical writing, editing, and research. I edit the Data Center, Linux and Open Source, Apple in the Enterprise, and IT Security blogs.
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