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 E-Mail 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. view more  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 telescopes to te

United statesMauna keaAdam riessBob cahnGreg alderingBrian schmidtHannah fakhouriSaul perlmutterKyle booneJohns hopkins universityAstronomical research of lyonMax planck institute for astrophysicsDark energy spectroscopic instrumentChina tsinghua universityInstitute of physicsOffice of science