Colliding Galaxies Spark a Stunning Holiday Light Show (Photo)
This composite image of the grazing galaxies NGC 2207 and IC 2163 contains data from NASA's Chandra, Hubble and Spitzer space telescopes. (Chandra data shows up as pink, Hubble data as red, green and blue, and Spitzer data as red.)
December 16th, 2014
The new image shows "ultra-luminous X-ray sources" (ULXs) studding the spiral galaxies NGC 2207 and IC 2163, which are grazing each other about 130 million light-years from Earth, in the constellation Canis Major.
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NASA Launches First Orion Deep-Space Capsule in Historic Test Flight
Lift Off of NASA's First Orion Space Capsule
December 5th, 2014
It's the spacecraft NASA has been waiting for. The space agency's new capsule, designed to help deliver humans to deep space destinations such as Mars someday, has just launched on its rigorous first test flight.
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NASA's 1st Deep-Space Capsule in 40 Years Ready for Launch Debut
NASA's Orion capsule sits atop a United Launch Alliance Delta 4 Heavy rocket inside the  Mobile Service Tower at Florida's Cape Canaveral Air Force Station ahead of its first test flight, which is scheduled to take place on Dec. 4, 2014.
December 2nd, 2014
NASA's Orion space capsule is scheduled to travel 3,600 miles from Earth on Dec. 4, then rocket back to Earth to test out a variety of systems during an unmanned flight. No human-spaceflight vehicle has traveled so far since 1972.
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Space Diamonds in Gold Country: California Meteorite's Secrets Revealed
Fragments of the Sutter’s Mill Meteorite
December 10th, 2014
A meteorite that crashed down in California's gold country is showing off treasures of a different sort: small diamonds that could tell scientists more about the insides of asteroids.
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Experts Cast Doubt on Meteorite Study's Claims of Martian Life
Tissint meteorite
December 3rd, 2014
A debate has long raged among scientists over the possible existence of life on Mars, and a new study is adding fuel to the fire.
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Ripples in Space-Time Could Reveal 'Strange Stars'
Two Neutron Stars Collide
December 1st, 2014
Astronomers are searching for gravitational waves possibly emitted by "strange stars," superdense objects made of exotic matter.
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Satellite Photo Shows Frigid Arctic Air Over Eastern US
In this image, captured in infrared light by the National Oceanic and Atmospheric Agency's GOES-East satellite on Nov. 18, 2014, the cold air over the central and eastern U.S. looks like a gray-white blanket.
November 19th, 2014
The region appears to be covered by a gray-white blanket in the image, which was captured in infrared light Tuesday morning (Nov. 18) by the National Oceanic and Atmospheric Administration's (NOAA) GOES-East spacecraft.
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Giant Crater on Mars Was Once a Vast Lake, Curiosity Rover Shows
Simulated View of Gale Crater Lake on Mars
December 9th, 2014
Curiosity has found evidence that the 96-mile-wide (154 kilometers) Gale Crater, which the rover has been studying since August 2012, hosted a large lake long ago. Runoff into this lake eventually built up Mount Sharp, mission scientists say.
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Drones and Planes Will Live-Track NASA's Orion Capsule Launch
NASA's Ikhana drone.
December 3rd, 2014
When NASA rockets its Orion spaceship high above the Earth's atmosphere on Thursday, the space-bound aircraft won't be alone.
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Cosmic Case of Missing Stars Baffles Scientists
Globular Cluster Fornax 3
November 24th, 2014
A massive population of stars is missing, and scientists are stumped as to where it could be.
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