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Updated: 2 hours 28 min ago

Mars rover moves onward after “Marias Pass” studies

Thu, 08/20/2015 - 04:00
Curiosity investigated a geological contact zone and rocks that are unexpectedly high in silica and hydrogen content.
Categories: Astronomy

Scientists think "planetary pebbles" were the building blocks for the largest planets

Thu, 08/20/2015 - 04:00
The study shows that pebble accretion can produce the observed structure of the solar system as long as the pebbles formed slowly enough that the growing gas giant planets have time to gravitationally interact with one another.
Categories: Astronomy

Solar system formation doesn’t mean a thing without that spin

Wed, 08/19/2015 - 04:00

New modeling shows that the supernova shock wave that helped form the Sun also could be responsible for the spin of our solar system.

Categories: Astronomy

Dark Energy Survey finds more celestial neighbors

Tue, 08/18/2015 - 04:00
New dwarf galaxy candidates could mean our sky is more crowded than we thought.
Categories: Astronomy

LADEE spacecraft finds neon in lunar atmosphere

Tue, 08/18/2015 - 04:00
The mission confirms that the Moon’s exosphere is made up of mostly helium, argon, and neon.
Categories: Astronomy

First use of ISS astronaut pictures for light pollution studies

Mon, 08/17/2015 - 04:00
This study not only includes the well-known signatures of cities and streets, but also the effects of faint indirectly scattered light.
Categories: Astronomy

Celestial firework marks nearest galaxy collision

Mon, 08/17/2015 - 04:00
The newly discovered ring galaxy, dubbed Kathryn’s Wheel, is seven times closer than anything similar found before.
Categories: Astronomy

Hubble finds supernovae in "wrong place at wrong time"

Fri, 08/14/2015 - 04:00
In a complicated mystery of double star systems, merging galaxies, and twin black holes, astronomers are explaining a series of unusual supernovae found beyond the typical confines of their galaxies.
Categories: Astronomy

Corrected sunspot history suggests climate change since the Industrial Revolution not due to natural solar trends

Thu, 08/13/2015 - 04:00
After uncovering a major calibration error, scientists show that the newly corrected sunspot numbers now provide a homogenous record of solar activity dating back some 400 years.
Categories: Astronomy

Astronomers discover "young Jupiter" exoplanet

Thu, 08/13/2015 - 04:00
The new planet, discovered using the Gemini Planet Imager, is a million times fainter than its parent star and shows the strongest methane signature ever detected on an alien world.
Categories: Astronomy

Oxymoronic black hole provides clues to growth

Wed, 08/12/2015 - 04:00
By studying the lightest supermassive black hole found to date, scientists hope to better understand of such objects of different sizes grow.
Categories: Astronomy

Rosetta sees comet's fireworks display ahead of perihelion

Tue, 08/11/2015 - 17:30
The dramatic event on Comet 67P/Churyumov-Gerasimenko was so powerful that it even pushed away the incoming solar wind.
Categories: Astronomy

Astronomers discover a 10th transiting "Tatooine"

Tue, 08/11/2015 - 04:00
With the number of known circumbinary exoplanets now at 10, astronomers can begin to compare different systems and look for trends.
Categories: Astronomy

Charting the slow death of the universe

Mon, 08/10/2015 - 04:00
Astronomers studying energy output in the nearby universe have confirmed that the energy produced today is only about half what it was 2 billion years ago.
Categories: Astronomy

Salt flat indicates some of the last vestiges of surface water on Mars

Mon, 08/10/2015 - 04:00
Digital terrain mapping and mineralogical analysis of the features surrounding the deposit indicate that this one-time lakebed is no older than 3.6 billion years old.
Categories: Astronomy

Gravitational constant appears universally constant, pulsar study suggests

Fri, 08/07/2015 - 18:00
The fact that scientists can see gravity perform the same in our solar system as it does in a distant star system helps confirm that the gravitational constant truly is universal.
Categories: Astronomy

Hubble finds evidence of galaxy star birth regulated by black hole fountain

Fri, 08/07/2015 - 04:00
The discovery explains the mystery of why many elliptical galaxies in the present-day universe are not ablaze with a higher rate of star birth.
Categories: Astronomy

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