Nobel Prize Winner Adam Riess: The Hubble Tension is Getting WORSE! (#231)
Into the Impossible With Brian Keating
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"I cannot think of any discovery that would be more profound," he says. "We have no n fiduciary interest in this field, and yet, and yet we both find it interest" He asks: 'To what degree should science sensationalism? And iwas joking'
Chat with Nobel Prize winner Adam Riess about his team's newest measurements of the 'most important number in cosmology' the Hubble Constant. Using the Hubble Space Telescope for what it was meant to do, Adam's team continues to make ultra-precise measurements. We'll also explore the Hubble Tension, the future of Hubble now that the James Webb Space Telescope has deployed, and other cosmic conundrums. Adam is a brilliant teacher and a wonderful raconteur. Don't miss your chance to chat with a brilliant scientist about the most important topic in cosmology today!
From the team: https://hubblesite.org/contents/news-releases/2022/news-2022-005
From CNN:
Measuring the expansion rate of the universe was one of the Hubble Space Telescope’s main goals when it was launched in 1990. Over the past 30 years, the space observatory has helped scientists discover and refine that accelerating rate – as well as uncover a mysterious wrinkle that only brand-new physics may solve.
Hubble has observed more than 40 galaxies that include pulsating stars as well as exploding stars called supernovae to measure even greater cosmic distances. Both of these phenomena help astronomers to mark astronomical distances like mile markers, which have pointed to the expansion rate.
In the quest to understand how quickly our universe expands, astronomers already made one unexpected discovery in 1998: “dark energy.” This phenomenon acts as a mysterious repulsive force that accelerates the expansion rate.
And there is another twist: an unexplained difference between the expansion rate of the local universe versus that of the distant universe right after the big bang.
Scientists don’t understand the discrepancy but acknowledge that it’s weird and could require new physics.
“You are getting the most precise measure of the expansion rate for the universe from the gold standard of telescopes and cosmic mile markers,” said Nobel Laureate Adam Riess at the Space Telescope Science Institute and a distinguished professor at the Johns Hopkins University in Baltimore, in a statement.
“This is what the Hubble Space Telescope was built to do, using the best techniques we know to do it. This is likely Hubble’s magnum opus, because it would take another 30 years of Hubble’s life to even double this sample size.”
Adam Guy Riess (born December 16, 1969) is an American astrophysicist and Bloomberg Distinguished Professor at Johns Hopkins University and the Space Telescope Science Institute. He is known for his research in using supernovae as cosmological probes. Riess shared both the 2006 Shaw Prize in Astronomy and the 2011 Nobel Prize in Physics with Saul Perlmutter and Brian P. Schmidt for providing evidence that the expansion of the universe is accelerating.
https://www.stsci.edu/~ariess/
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- Produced by Stuart Volkow (P.G.A) and Brian Keating
- Edited by Stuart Volkow
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