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Geraint Lewis - 3 Albert Einstein - 2 Albert Einstein's - 1 — - 1 Albert Einstein’s - 1 ” - 1 Einstein - 1 ” Lewis - 1
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Search resuls for: "Geraint Lewis"


3 mentions found


☆ Time appeared to move 5 times slower in the early days of the universe, scientists found
  + stars: | 2023-07-05 | by ( Sonam Sheth | ) www.businessinsider.com   time to read: +2 min
A new study found that time appeared to move five times slower in the early days of the universe. Scientists used quasars — enormously bright supermassive black holes — to arrive at their findings. The researchers used quasars — supermassive black holes that feed on gas and are among the brightest known celestial objects — to arrive at their finding. Quasars "are crucial to understanding the early universe," one astronomer said in 2018. Albert Einstein, in his general theory of relativity, predicted that we live in an expanding universe, where time was slower in its early years, and now the researchers in this study observed that.
Persons: Albert Einstein's, —, Geraint Lewis, Albert Einstein Organizations: Service, Privacy, CNN, University of Sydney's School of Physics, Sydney Institute for Astronomy
☆ Quasars reveal the early universe moved slower than it does now
  + stars: | 2023-07-03 | by ( Ashley Strickland | ) edition.cnn.com   time to read: +4 min
CNN —Scientists have peered into the early days of the universe, when it was about 1 billion years old, and discovered that things moved in slow motion compared with now. Unlocking what happened during the early days of the universe can help scientists tackle the biggest mysteries about its origin, how it evolved and what the future holds. “This expansion of space means that our observations of the early universe should appear to be much slower than time flows today. While very bright, supernovas become much harder to observe at greater distances from Earth, which means that astronomers needed another source that would be visible deeper in the early universe. “What we have done is unravel this firework display, showing that quasars, too, can be used as standard markers of time for the early universe.”
Persons: Albert Einstein’s, ”, Geraint Lewis, Einstein, ” Lewis, Brendon Brewer Organizations: CNN —, University of Sydney’s School of Physics, Sydney Institute for Astronomy, University of Auckland
☆ Ferocious black holes reveal 'time dilation' in early universe
  + stars: | 2023-07-03 | by ( Will Dunham | ) www.reuters.com   time to read: +4 min
Scientists made that point anew on Monday in a study that used observations of a ferocious class of black holes called quasars to demonstrate "time dilation" in the early universe, showing how time then passed only about a fifth as quickly as it does today. The observations stretch back to about 12.3 billion years ago, when the universe was roughly a tenth its present age. Quasars - among the brightest objects in the universe - were used as a "clock" in the study to measure time in the deep past. Quasars are tremendously active supermassive black holes millions to billions of times more massive than our sun, usually residing at centers of galaxies. The explosion of individual stars cannot be seen beyond a certain distance away, limiting their use in studying the early universe.
Persons: Albert Einstein, Dr, Geraint Lewis, Lewis, today's, Will Dunham, Rosalba O'Brien Organizations: University of Sydney, Thomson Locations: Australia
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