The Sky Tonight

September 15, 2015

Scientists conduct most precise test of light speed
Berlin (UPI) Sep 15, 2015
The speed of light is a constant. A new test - the most precise test of a photon's speed - confirms it. The results of the test support the concept of Lorentz symmetry, the idea that the laws of physics are constant in all directions. Researchers from the University of Western Australia and Humboldt University of Berlin measured the spatial consistency of the speed of light using two cryogenic sapphire oscillators. Two pieces of sapphire are vibrated at identical frequencies and superc ... read more

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Rocky planets may be habitable depending on their 'air conditioning system' The quest for potentially habitable planets is often interpreted as the search for an Earth twin. And yet, some rocky planets outside our Solar System may in fact be more promising candidates for fu ... more		Hidden in Plain Sight Gamma-ray pulsars are remnants of explosions that end the lives of massive stars. They are highly-magnetized and rapidly rotating compact neutron stars. Like a cosmic lighthouse they emit gamma-ray ... more		Astronomers peer into the 'amniotic sac' of a planet-hosting star Astronomers have successfully peered through the 'amniotic sac' of a star that is still forming to observe the innermost region of a burgeoning solar system for the first time. In a research p ... more
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Nuclear Decommissioning And Used Fuel Market 2015

Solar systems for home and business installations

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Nuclear Operations and Maintenance Efficiency Summit USA 2015

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Neutrinovoltaic master formula published as pathway to scalable clean energy

Boeing defense workers reject deal to end strike

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Earth observations show how nitrogen may be detected on exoplanets, aiding search for life

Airless Space Weathering Duplicated in Lab Environment

Distant planet's interior chemistry may differ from our own

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Scientists 'squeeze' light one particle at a time

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New, Ultrathin Optical Devices Shape Light in Exotic Ways

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Draw out of the predicted interatomic force

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Evidence suggests subatomic particles could defy the standard model

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LISA Pathfinder set for launch site

Tiny drops of early universe 'perfect' fluid

Canyonlands National Park Named International Dark Sky Park

How to get rid of a satellite after its retirement

Contamination pathway for plutonium, other heavy elements, identified

Astronomers unravel the history of galaxies for the first time

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