Dr. Adam Riess is a 2011 Nobel Laureate in Physics, is Bloomberg Distinguished Professor at Johns Hopkins University and the Space Telescope Science Institute in Baltimore, Maryland.
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17:15
DESI Data Strengthens Evidence Of Change In Dark Energy
Researchers built the largest 3D map of our universe yet. What they found supports the idea that dark energy could have evolved over time.
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17:10
One Constant, Two Answers
Astronomers are trying to figure out how fast the universe is expanding. But two approaches are giving different answers.
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Ask an Astrophysicist
Nobel Prize-winning astrophysicist Adam Riess takes your questions on dark energy and the cosmos.
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Adam Riess: One Cosmic Puzzle Solved, Many To Go
Nobel Prize-winning astrophysicist Adam Riess discusses the mysterious force known as dark energy.