dark energy

At the 2017 APS Division of Particles and Fields meeting at Fermilab, Stanford scientist Daniel Gruen reported the year-one results from the Dark Energy Survey, including the most accurate measurement ever made of the present large-scale structure of the universe. You can view a video of Gruen’s talk, which is now available online.

From BBC News, Aug. 3, 2017: Dark Energy Survey researchers have released the most accurate map ever produced of the dark matter in our universe.

From the DOE Office of Science, June 21, 2017: Dark Energy Survey Director Josh Frieman appears in this Office of Science article, which surveys research projects that will help us better understand the phenomenon that is accelerating the universe’s expansion.

Scientists furthered studies of the Higgs boson, neutrinos, dark matter, dark energy and cosmic inflation and continued the search for undiscovered particles, forces and principles.

From Berkeley Lab, Aug. 9, 2016: DESI, the Dark Energy Spectroscopic Instrument, will measure light from 35 million galaxies to provide new clues about dark energy. Fermilab is a collaborator on the Berkeley Lab project.

How do scientists know what percentages of the universe are made up of dark matter and dark energy? Cosmologist Risa Wechsler of the Kavli Institute for Particle Astrophysics and Cosmology explains. Watch the 3-minute video.