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06.19.14

How to Measure the Size of an Asteroid

Observations of infrared light coming from asteroids provide a better estimate of their true sizes than visible-light... view image

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06.19.14

Solid as a Rock? Porosity of Asteroids

Asteroids can differ in the degree of porosity, or the amount of empty space that makes up their structures. At one e... view image

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06.19.14

I Spy a Little Asteroid With My Infrared Eye

This image of asteroid 2011 MD was taken by NASA's Spitzer Space Telescope in Feb. 2014, over a period of 20 hours. T... view image

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05.15.14

Spitzer's Archive of Asteroids

A new software tool lets astronomers quickly comb through existing datasets to recover detections of newly-discovered... view image

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09.10.13

Spitzer Spies a Comet Coma and Tail

Don Quixote's coma and tail -- features of comets -- as revealed in infrared light by Spitzer. The coma appears as a ... view image

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09.10.13

Spitzer Spies a Comet Coma and Tail

With the help of NASA's Spitzer Space Telescope, astronomers have discovered that what was thought to be a large aste... view image

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09.10.13

Spitzer Spies a Comet Coma and Tail

This image represents a more elaborate image processing step, in which the glow of the coma has been removed based on... view image

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07.23.13

Spitzer Eyes Comet ISON

These images from NASA's Spitzer Space Telescope of Comet ISON were taken on June 13, when ISON was 310 million miles... view image

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01.08.13

Rocky Ring of Debris Around Vega

This artist's concept illustrates an asteroid belt around the bright star Vega. view image

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10.19.11

It's Raining Comets

This artist's conception illustrates a storm of comets around a star near our own, called Eta Corvi. view image

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09.02.10

Rendezvous with Eros

This image, taken by NASA's Near Earth Asteroid Rendezvous mission in 2000, shows a close-up view of Eros, an asteroi... view image

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01.05.09

Asteroid 'Bites the Dust' Around Dead Star

NASA's Spitzer Space Telescope set its infrared eyes upon the dusty remains of shredded asteroids around several dead... view image

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10.27.08

Epsilon Eridani: Double the Rubble

This artist's conception shows the closest known planetary system to our own, called Epsilon Eridani. Observations fr... view image

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10.10.08

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 ... view image

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05.10.06

A Million Comet Pieces

This infrared image from NASA's Spitzer Space Telescope shows the broken Comet 73P/Schwassman-Wachmann 3 skimming alo... view image

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05.05.06

Comet Stepping Stones

This image from NASA's Spitzer Space Telescope shows three of the many fragments making up Comet 73P/Schwassman-Wachm... view image

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01.11.06

Comet 'Bites the Dust' Around Dead Star

This artist's concept illustrates a comet being torn to shreds around a white dwarf called G29-38. NASA's Spitzer Spa... view image

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09.07.05

Ingredients of a Comet

Astronomers using data from NASA's Spitzer Space Telescope and the Deep Impact mission are putting together a recipe ... view image

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09.07.05

Tempel 1's Secret Ingredients Revealed

This graph shows the two spectra acquired by NASA's Spitzer Space Telescope before (middle) and after (bottom) it obs... view image

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09.07.05

How to Make Comet Soup

Hungry for a comet? Perhaps not, but astronomers using data from NASA's Spitzer Space Telescope and the Deep Impact m... view image

   

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