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Supernovae twins open up new possibilities for precision cosmology


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IMAGE: The upper left figure shows the spectra brightness versus wavelength for two supernovae. One is nearby and one is very distant. To measure dark energy, scientists need to.
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Credit: Graphic credit: Zosia Rostomian/Berkeley Lab; photo credit: NASA/ESA)
Cosmologists have found a way to double the accuracy of measuring distances to supernova explosions - one of their tried-and-true tools for studying the mysterious dark energy that is making the universe expand faster and faster. The results from the Nearby Supernova Factory (SNfactory) collaboration, led by Greg Aldering of the Department of Energy s Lawrence Berkeley National Laboratory (Berkeley Lab), will enable scientists to study dark energy with greatly improved precision and accuracy, and provide a powerful crosscheck of the technique across vast distances and time. The findings will also be central to major upcoming cosmology experiments that will use new ground and space t ....

United States , Mauna Kea , Adam Riess , Bob Cahn , Greg Aldering , Brian Schmidt , Hannah Fakhouri , Saul Perlmutter , Kyle Boone , Johns Hopkins University , Astronomical Research Of Lyon , Max Planck Institute For Astrophysics , Dark Energy Spectroscopic Instrument , China Tsinghua University , Institute Of Physics , Office Of Science , Yale University , Australian National University , Department Of Energy , National Natural Science Foundation Of China , High Energy At Sorbonne University , Legacy Survey Of Space , Lawrence Berkeley National Laboratory , University Claude Bernard , German Aerospace Center , French National Institute Of Nuclear ,

Launch of Europe's largest astronomy network


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IMAGE: The entire arc of Milky Way, full of gas and dust, star clusters and emission nebulae, is a luminous background for the ESO-operated Very Large Telescope (VLT).
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Credit: M. Claro/ESO.
Until now, Europe has had two major collaborative networks for ground-based astronomy, one in the optical wavelength domain and the other in the radio-wave domain. OPTICON and RadioNet have now come together to form Europe s largest ground-based astronomy collaborative network. Launched with funding to the tune of €15 million under the H2020 programme, the project aims to harmonise observational methods and tools, and provide access to a wider range of astronomy facilities. ....

South Africa , Region Flamande , Gerry Gilmore , Denis Defr , Jean Gabriel Cuby , Anton Zensus , European Union Horizon , National Institute For Earth Sciences , Institute Of Astronomy , European Commission , Max Planck Institute For Radio Astronomy Germany , University Of Cambridge United Kingdom , French Centre National De La Recherche Scientifique , European Union , United Kingdom , Max Planck Institute , Radio Astronomy , Very Large Telescope Interferometer , Earth Sciences , ஜெர்ரி கில்மோர் , ஐரோப்பிய தொழிற்சங்கம் அடிவானம் , தேசிய நிறுவனம் க்கு பூமி அறிவியல் , நிறுவனம் ஆஃப் வானியல் , ஐரோப்பிய தரகு , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் ஒன்றுபட்டது கிஂக்டம் , ஐரோப்பிய தொழிற்சங்கம் ,