Browse Archive
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NASA's Great Observatories Celebrate International Year of Astronomy
A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA today. This event will commemorate the 400 years since Galileo first turned his telescope to the heavens in 1609.
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Spitzer Observes a Chaotic Planetary System
NASA's Spitzer Space Telescope has found a young star with evidence of the same orbital hyperactivity that our planets had before they found their way to the stable orbits they circle in today.
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Astronomers Do It Again: Find Organic Molecules Around Gas Planet
Peering far beyond our solar system, NASA researchers have detected the basic chemistry for life in a second hot gas planet, advancing astronomers toward the goal of being able to characterize planets where life could exist.
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Spitzer Discovers Largest Ring Around Saturn
NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn -- by far the largest of the giant planet's many rings.
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Spitzer Spots Clump Of Swirling Planetary Material
Astronomers have witnessed odd behavior around a young star. Something, perhaps another star or a planet, appears to be pushing a clump of planet-forming material around.
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Space Telescopes Find Trigger-Happy Star Formation
A new study from two of NASA's Great Observatories provides fresh insight into how some stars are born, along with a beautiful new image of a stellar nursery in our Milky Way galaxy.
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Planet Smash-Up Sends Vaporized Rock, Hot Lava Flying
NASA's Spitzer Space Telescope has found evidence of a high-speed collision between two burgeoning planets around a young star.
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Spitzer Sees Cosmos Through 'Warm' Infrared Eyes
NASA's Spitzer Space Telescope is starting a second career and taking its first shots of the cosmos since warming up.
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NASA's Spitzer Images Out-of-This-World Galaxy
NASA's Spitzer Space Telescope has imaged a wild creature of the dark -- a coiled galaxy with an eye-like object at its center.
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Baby Stars Finally Found in Jumbled Galactic Center
Astronomers have at last uncovered newborn stars at the frenzied center of our Milky Way galaxy.
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NASA's Spitzer Begins Warm Mission
After more than five-and-a-half years of probing the cool cosmos, Spitzer has run out of the coolant that kept its infrared instruments chilled.
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Spitzer Catches Star Cooking up Comet Crystals
Scientists have long wondered how tiny silicate crystals, which need sizzling high temperatures to form, have found their way into frozen comets.
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NASA's Spitzer Telescope Warms Up To New Career
The primary mission of NASA's Spitzer Space Telescope is about to end after more than five-and-a-half years of probing the cosmos with its keen infrared eye.
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If Spitzer Could Talk: An Interview with a Telescope
NASA's Spitzer Space Telescope is about to use its last drop of the coolant that has chilled it for the past five-and-a-half years.
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Why Are Galaxies So Smooth?
This image from NASA's Spitzer Space Telescope shows the spiral galaxy NGC 2841, located about 46 million light-years from Earth in the constellation Ursa Major.
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Cool Stars Have Different Mix of Life-Forming Chemicals
Life on Earth is thought to have arisen from a hot soup of chemicals. Does this same soup exist on planets around other stars?
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NASA Joins 'Around the World in 80 Telescopes'
A collection of NASA missions will be involved in a live event Friday, April 3, that will allow the public to get an inside look at how these missions are run.
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Hearts of Galaxies Close in for Cosmic Train Wreck
A new image from NASA's Spitzer Space Telescope offers a rare view of an imminent collision between the cores of two merging galaxies, each powered by a black hole with millions of times the mass of the sun.
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Dead Stars Tell Story of Planet Birth
Astronomers have turned to an unexpected place to study the evolution of planets -- dead stars.
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Astronomers Find the Two Dimmest Stellar Bulbs
It's a tie! The new record-holder for dimmest known star-like object in the universe goes to twin "failed" stars, each of which shines feebly with only one millionth the light of our sun.