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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 ,

Supernovae Twins Open Up New Possibilities for Precision Cosmology

Supernovae Twins Open Up New Possibilities for Precision Cosmology
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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 , Department Of Energy , Australian National University , 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 , Zosia Rostomian Berkeley Lab ,