Space
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We summarize the week's scientific breakthroughs every Thursday.
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Planetary SciencePristine fragments of asteroid breakup
Planetary scientists have for the first time precisely dated a collision that smashed an asteroid into fragments.
By Ron Cowen -
AstronomyPlanetary System in the Making? Stellar eclipse hints at planet-forming debris
Astronomers reported the first evidence that a young star is periodically eclipsed by a stream of debris, possibly an orbiting belt of asteroids held in place by a massive, unseen planet.
By Ron Cowen -
AstronomyOutlier Planet: Extrasolar places that are like home
A team of veteran hunters of planets outside the solar system has come up with a landmark finding: a Jupiterlike planet orbiting a Sunlike star at a Jupiterlike distance.
By Ron Cowen -
AstronomySeeing Red: A cool revival of Hubble’s infrared camera
New images provide a graphic demonstration that the Hubble Space Telescope's infrared vision has been restored.
By Ron Cowen -
AstronomyRare Find: Odd type of ammonia detected in space
The discovery of deuterated ammonia in space could help astronomers better understand the complex chemistry of dark clouds in star-forming regions.
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Planetary ScienceOdyssey’s Homer: Hints of water near both poles of Mars
Sensors on board the Mars Odyssey spacecraft have spied strong signs of ice buried near both poles of the Red Planet, exactly the regions where scientists previously had said that such frozen water deposits could exist.
By Sid Perkins -
AstronomyCosmic Dawn
New computer simulations suggest that the first stars in the universe were extremely massive and left behind gamma-ray bursts that may already have been detected by telescopes orbiting Earth.
By Ron Cowen -
AstronomyMore evidence for a revved-up universe
By studying the clustering pattern of galaxies, astronomers have obtained additional evidence that cosmic expansion is accelerating.
By Ron Cowen -
Planetary ScienceHard bodies pair off
About one out of every eight asteroids traveling near Earth has a rocky companion.
By Ron Cowen -
AstronomyHeavenly Taffy: Galaxies in collision
Astronomers have discovered a pair of colliding galaxies connected by a bridge of high-speed electrons and elongated magnetic fields.
By Ron Cowen -
AstronomyPhysics-astronomy merger wins big
A new report recommends fostering the extraordinary collaboration taking place between particle physics and astronomy.
By Peter Weiss -
AstronomySharper Images: New Hubble camera goes the distance
Astronomers have unveiled a picture of the distant universe that ranks as the sharpest and most detailed ever recorded.
By Ron Cowen