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Updated: 28 min 19 sec ago

Cosmic food fights

Mon, 07/28/2014 - 11:00
Disputes in astronomy don't exist only in ancient history.
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The most precise measurement of an alien world’s size

Fri, 07/25/2014 - 16:00
Kepler-93b is now known to an uncertainty of just 74 miles (119 kilometers) on either side of the planetary body.
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Surface impressions of Rosetta’s comet

Fri, 07/25/2014 - 03:00
One of the most striking features of Comet 67P/Churyumov-Gerasimenko is currently found in the comet’s neck region where it seems to be brighter than the rest of the nucleus.
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New mass map of a distant galaxy cluster is the most precise yet

Thu, 07/24/2014 - 17:00
Created using observations from Hubble's Frontier Fields observing program, the map shows the amount and distribution of mass within MCS J0416.1–2403.
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Hubble finds three surprisingly dry exoplanets

Thu, 07/24/2014 - 03:00
The planets were thought to be ideal candidates for detecting water vapor because of their high temperatures where water turns into a measurable vapor.
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Lives and deaths of sibling stars

Wed, 07/23/2014 - 17:00
The star cluster NGC 3293 is an ideal object for testing stellar evolution theory.
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Fermi finds a “transformer” pulsar

Wed, 07/23/2014 - 03:00
An exceptional binary containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed — the pulsar's radio beacon vanished while at the same time the system brightened fivefold in gamma rays.
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Hubble traces the halo of a galaxy more accurately than ever before

Tue, 07/22/2014 - 17:30
Observations reveal that Centaurus A’s halo spreads far further into space than expected.
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Transiting exoplanet with longest known year

Tue, 07/22/2014 - 03:00
Kepler-421b orbits an orange, type K star once every 704 days at a distance of about 110 million miles.
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Fingerprinting the formation of giant planets

Mon, 07/21/2014 - 16:30
A team of scientists used observations of the system 16 Cygni to discover evidence of how giant planets like Jupiter form.
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Project yields sharpest map of Mars surface properties

Mon, 07/21/2014 - 03:00
The map uses data from the Thermal Emission Imaging System (THEMIS), a nine-band visual and infrared camera on NASA's Mars Odyssey orbiter.
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Peering into giant planets from in and out of this world

Fri, 07/18/2014 - 03:00
Researchers can now re-create and accurately measure material properties that control how these planets evolve over time.
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The twofold comet: Comet 67P/Churyumov-Gerasimenko

Thu, 07/17/2014 - 18:30
New images obtained by Rosetta confirm Comet 67P Churyumov-Gerasimenko’s peculiar two-part shape.
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Asteroid Vesta to reshape theories of planet formation

Thu, 07/17/2014 - 03:00
If Vesta has less of an olivine-rich mantle and more of a pyroxene-rich crust, then the proportion of materials making up Vesta, and probably Earth and other telluric planets, is different from what was previously expected.
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Comet ISON’s final hours

Wed, 07/16/2014 - 17:00
Researchers have concluded that hours before its perihelion passage, ISON stopped emitting dust and gas into space.
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Curiosity finds iron meteorite on Mars

Wed, 07/16/2014 - 03:00
Iron meteorites dominate the small number of space rocks found on the Red Planet.
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Silhouettes of early galaxies reveal few seeds for new stars

Tue, 07/15/2014 - 18:00
Previous experiments led astronomers to expect hydrogen molecules in 10 of the 90 young galaxies observed, but they found just one case.
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Out of an hours-long explosion, a stand-in for the first stars

Tue, 07/15/2014 - 03:00
The outburst validates ideas about a recently identified class of gamma-ray burst and serves as a stand-in for what future observatories may see as the last acts of the first stars.
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NASA spacecraft observes further evidence of dry ice gullies on Mars

Mon, 07/14/2014 - 16:00
Mars has water vapor and plenty of frozen water, but the presence of liquid water on the neighboring planet has not been confirmed.
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Sun-like stars reveal their ages

Mon, 07/14/2014 - 03:00
Astronomers are using a new technique called gyrochronology for measuring the age of 22 Sun-like stars using their spins.
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