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Underground experiment confirms what powers the sun
29 Aug 2014

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Pictured above is the Borexino detector showing inner sphere of scintillator, buffer sphere, and detectors. Scientists have long believed that the power of the sun comes largely from the fusion of protons into helium, but now they can finally prove it. Using this detector, an international team of researchers has identified neutrinos—ghostly particles that interact only very reluctantly with matter—streaming from the heart of the sun. Other solar neutrinos have been detected before, but these particular ones come from the key proton-proton fusion reaction that is the first part of a chain of reactions that provides 99 percent of the sun’s power. The results also show that the sun is a remarkably steady power source.

Image credit: Borexino Collaboration





RedOrbit Images Of The Day - Earth

Aurora Australis
Aurora Australis
29 Aug 2014
One of the Expedition 40 crew members aboard the International Space Station recorded this colorful image of Aurora Australis on July 15, 2014. Achernar (just to the right of center) is the brightest and most easily recognizable star in this generally southward view. The orbital outpost was flying at an altitude of 225 nautical miles over a nadir point located at 51.6 degrees south latitude and 110.3 degrees east longitude. Two solar array panels are partially visible in an edge-on angle on the right side of the frame.

Credit: NASA




USGS Earthquake ShakeMaps

3.5 - 45.0 km (28.0 mi) SSE of Adel, OR
29 Aug 2014

Date: Fri, 29 Aug 2014 08:46:59 UTC
Lat/Lon: 41.8383/-119.627
Depth: 5.4





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