“Measuring Shadows” –Revising the Expansion Rate of the Cosmos

 

Hubble's Constant

 

“Eventually we reach the utmost limits of our telescopes –there we measure shadows, and we search among the ghostly errors of measurement for landmarks that are scarcely more substantial,” said Edwin Hubble in 1929, creator of Hubble’s law that observed that the further galaxies are, the faster they are moving away from Earth –the “red shift.” Predictions of Hubble’s Constant from the standard cosmological model when applied to new measurements of the cosmic microwave background (CMB)—the leftover radiation from the Big Bang—have produced a value of 67.4, a significant and troubling difference. This difference, which astronomers say is one of the fundamental problems in all of physics, is beyond the experimental errors in the observations.

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“Unknown Physics” –Dark Energy: Darkest Mystery of the Cosmos Deepens

Spiral Galaxy

 

In an interview with The Atlantic, Noble Prize winning physicist Adam Riess said: “I have absolutely no clue what dark energy is. Dark energy appears strong enough to push the entire universe – yet its source is unknown, its location is unknown and its physics are highly speculative.”

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“Nothing Like Ours” –Billions of Years from Now a Strange New Universe Emerges

Galaxy Protocluster

 

“The Hubble tension between the early and late universe may be the most exciting development in cosmology in decades,” says Nobel laureate Adam Riess of the Space Telescope Science Institute (STScI) and Johns Hopkins University, about new Hubble Space Telescope data that suggest a faster expansion rate in the modern universe than expected, based on how the universe appeared more than 13 billion years ago strengthening the case that new theories may be needed to explain the dark energy forces that have shaped the cosmos.

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Hubble Unveils a Mystery –“New Physics Needed to Explain Forces That Shaped the Cosmos”

Early Galaxies

 

“The Hubble tension between the early and late universe may be the most exciting development in cosmology in decades,” said lead researcher and Nobel laureate Adam Riess of the Space Telescope Science Institute (STScI) and Johns Hopkins University, about new Hubble Space Telescope data that suggest a faster expansion rate in the modern universe than expected, based on how the universe appeared more than 13 billion years ago strengthening the case that new theories may be needed to explain the forces that have shaped the cosmos.

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Incredibly Weird Dark Energy –“Its Source Unknown, Location Unknown, Physics Unknown”

 

Dark Energy

 

“Dark energy is incredibly strange, but actually it makes sense to me that it went unnoticed,” said Noble Prize winning physicist Adam Riess in an interview. “I have absolutely no clue what dark energy is. Dark energy appears strong enough to push the entire universe – yet its source is unknown, its location is unknown and its physics are highly speculative.”

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