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Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite of our own Milky Way galaxy, represent a new category of gamma-ray-emitting objects detected both by Fermi and ground-based observatories.
Stellar explosions known as type Ia supernovae have proved invaluable to astrophysicists as markers of cosmic distance. Their brightness and consistency in observed properties allow astronomers to use them as "standard candles" to determine distances to objects in the sky. Just a decade ago type Ia supernovae took center stage when researchers harnessed them as evidence that the universe is ...
( NASA/Goddard Space Flight Center ) Residents of the US Gulf coast thought they were getting a break this hurricane season until Ida showed up. Today, November 9, Ida is a hurricane and is headed for a landfall in the western Florida Panhandle after midnight. The Geostationary Operational Environmental Satellite, GOES-12 captured a look at Ida's extensive clouds this morning, and they stretch ...
Astronomers find early, distant galaxies that could illuminate universe's first light.
Fort Collins High School graduate Dorothy Metcalf-Lindenburger is going into outer space and will have a version of school mascot Clyde, a stuffed lamb in a space suit, by her side. School officials believe Metcalf-Lindenburger will be the school's first graduate in space. The 1993 graduate and science teacher entered NASA's astronaut training program and will fly on the shuttle in March ...
A NASA spacecraft gliding over the battered surface of Mercury for the second time this year has revealed more previously unseen real estate on the innermost planet. The probe also has produced several science firsts and is returning hundreds of new photos and measurements of the planet's surface, atmosphere and magnetic field.
While black holes themselves are invisible, the regions around them are reigned by powerful magnetic and gravitational forces that create some of the most luminous radiation ever seen.
A cosmic light show is expected this week with the return of the annual Leonid meteor shower in the night sky.
Get FREE Daily Headlines by email! What do airplane chaff to confuse enemy radar, spacecraft shielding against meteor strikes and precision satellite tracking have in common? They were all improved or invented during the brilliant career of American astronomer Fred Lawrence Whipple.
Today, the X PRIZE Foundation along with NASA hosted an awards ceremony to culminate the Northrop Grumman Lunar Lander X PRIZE Challenge (NGLLXPC).
The Electron Beam Freeform Fabrication at NASA Langley Research Center builds three-dimensional objects with a beam.
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