Adam Riess
Adam Riess is a noted contributor to Encyclopaedia Britannica online. Read Britannica's biography of Adam Riess
Adam Riess is Thomas J. Barber Professor in Space Studies, Department of Astronomy and Physics, Johns Hopkins University and Distinguished Astronomer, Space Telescope Science Institute.
He shared the 2011 Nobel Prize for Physics (with Saul Perlmutter and astronomer Brian Schmidt) for his discovery of dark energy.
photograph: Courtesy of the John D. & Catherine T. MacArthur Foundation
Primary Contributions (2)
Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).…
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