IRON AND ICE

News About Asteroids And Comets

2,240 articles

Heliophysics Nugget: Sungrazing Comets as Solar Probes
Dec 07, 2012 (SPX)
To observe how winds move high in Earth's atmosphere, scientists sometimes release clouds of barium as tracers to track how the material corkscrews, blows aroun...
Asteroid dust from space
Nov 30, 2012 (SPX)
To the naked eye there is nothing to see, and yet the small transparent container holds something never observed before. For the first time, scientists are stud...
Nine Radar Images of Asteroid 2007 PA8
Nov 29, 2012 (JPL)
A collage shows nine radar images of near-Earth asteroid 2007 PA8 that were obtained between Oct. 31 and Nov. 13, 2012, with data collected by NASA's 230-foot-w...
DARPA's Advanced Space Surveillance Telescope Could Be Looking Up From Down Under
Nov 16, 2012 (SPX)
DARPA's ground-based Space Surveillance Telescope (SST) may soon head to Australia. An agreement reached this week with Australia's Department of Defense will a...
Comet collisions every 6 seconds explain 17-year-old stellar mystery
Nov 09, 2012 (SPX)
Every six seconds, for millions of years, comets have been colliding with one another near a star in the constellation Cetus called 49 CETI, which is visible to...
NASA Radar Images Asteroid 2007 PA8
Nov 07, 2012 (JPL)
Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have obtained several radar images depicting near-Earth...
Ball Aerospace/B612 Foundation Sign Contract for Sentinel Mission
Nov 06, 2012 (SPX)
Ball Aerospace and Technologies Corp. and the non-profit B612 Foundation have signed a contract for Ball to create prototype infrared imaging sensors for the Se...
Scientists Monitor Comet Breakup
Nov 05, 2012 (JPL)
The Hergenrother comet is currently traversing the inner-solar system. Amateur and professional astronomers alike have been following the icy-dirt ball over the...
Protoplanet Vesta: Forever young?
Nov 01, 2012 (SPX)
Like a movie star constantly retouching her makeup, the protoplanet Vesta is continually stirring its outermost layer and presenting a young face. New data from...
Dawn On Route To Ceres
Nov 01, 2012 (JPL)
Dawn is making good progress on the second segment of its cosmic travels. Following more than a year of arduous but sensationally productive and exciting work r...
Dawn Sees Young Surface on Giant Asteroid
Nov 01, 2012 (JPL)
Like a Hollywood starlet constantly retouching her makeup, the giant asteroid Vesta is constantly stirring its outermost layer to present a young face. Data fro...
Whizzing Asteroid Turns Rocket Scientists' Heads
Oct 29, 2012 (SPX)
International leaders in asteroid and comet research are gathering at the University of Central Florida in Orlando Friday, Feb. 15, for a special "viewing party...
Lost asteroid rediscovered with a little help from ESA
Oct 15, 2012 (ESA)
A potentially hazardous asteroid once found but then lost has been rediscovered and its orbit confirmed by a determined amateur astronomer working with ESA's sp...
First Evidence of Dynamo Generation in an Asteroid
Oct 12, 2012 (SPX)
About 4.6 billion years ago, the solar system was little more than a tenuous disk of gas and dust. In the span of merely 10 million years, this soup evolved to ...
Asteroid fragments could hint at the origin of the solar system
Oct 08, 2012 (SPX)
The tiny pieces of rock - at 50-100 micrometers smaller than a human hair - have been captured from asteroid Itokawa by the Japanese mission Hayabusa. They were...
Troughs Suggest Stunted Planetary Development Of Vesta
Oct 01, 2012 (JPL)
Enormous troughs that wrap around the giant asteroid Vesta may actually be dropped blocks of terrain bounded by fault lines, suggesting a geologic complexity be...
A New Dawn For NASA's Asteroid Explorer
Oct 01, 2012 (JPL)
On the fifth anniversary of the beginning of its ambitious interplanetary adventure, Dawn can look back with great satisfaction on its spectacular exploration o...
Mysterious Case of Asteroid Oljato's Magnetic Disturbance
Sep 28, 2012 (SPX)
Back in the 1980s, the arrival of asteroid 2201 Oljato inside the orbit of Venus heralded a flurry of magnetic activity. Now, results from ESA's Venus Express s...
Russia, Belarus astronomers discover brightest comet
Sep 28, 2012 (Voice of Russia)
Russia's amateur astronomer Artyom Novichonok and his Belarusian colleague Vitaly Nevsky have discovered a comet which might become the brightest this decade. T...
Asteroid's Troughs Suggest Stunted Planet
Sep 28, 2012 (SPX)
Enormous troughs that reach across the asteroid Vesta may actually be stretch marks that hint of a complexity beyond most asteroids. Scientists have been trying...
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