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10 mentions found


☆ The largest map of the cosmos hints that dark energy is changing. It could prove Einstein wrong and upend a pillar of modern physics.
  + stars: | 2024-04-05 | by ( Jessica Orwig | Morgan Mcfall-Johnsen | ) www.businessinsider.com   time to read: +6 min
New data from the largest 3-D map of our universe suggests we may be wrong about dark energy. One of the driving forces behind that evolution is also one of our age's biggest mysteries in physics: dark energy. Einstein abandoned the idea as his "greatest blunder" in the 1930s, as astrophysicist Ethan Siegal explains, but a constant dark energy would have vindicated him. "If true, it would be the first real clue we have gotten about the nature of dark energy in 25 years," Adam Riess, a Nobel laureate for his co-discovery of dark energy, told Quanta Magazine. "The idea that dark energy is varying is very natural," Paul Steinhardt, a Princeton University cosmologist, told the magazine.
Persons: —, we're, Michael Levi, Levi, DESI, Marenfeld, Claire Lamman, Albert Einstein's, Einstein, Ethan Siegal, Albert Einstein, Ernst Haas, Adam Riess, Paul Steinhardt, Princeton University cosmologist, Riess, Vera C, Travis Lange, Jacqueline Ramseyer Orrell, NASA's Nancy Grace, Arnaud de Mattia, Mattia Organizations: Service, Lawrence Berkeley National Laboratory, American Physical Society, Princeton University, NASA, Rubin, Accelerator, Atomic Energy Commission Locations: Arizona, Princeton , New Jersey
☆ PsiQuantum targets first commercial quantum computer in under six years
  + stars: | 2023-09-28 | by ( Max A. Cherney | ) www.reuters.com   time to read: +2 min
Sept 28 (Reuters) - PsiQuantum is aiming to deliver its first commercial quantum computing system in under six years, its CEO said as the startup announced a partnership with the U.S. Department of Energy to develop advanced fridges for its machines. "The first system that's actually capable of solving important problems that people want to know the answer to - that's just a handful of years away," he said in an interview. Estimates for the development of practical quantum computing by other experts in the field typically put it at a decade or even 20 or more years away. The company needs to reach roughly 1 million quantum bits, or qubits, to be of practical use, O'Brien said. Because of the immense computational power in quantum computing, there is a gamut of potential applications from materials science to national security to finance.
Persons: Jeremy O'Brien, GlobalFoundries, O'Brien, Max A, Edwina Gibbs Organizations: U.S . Department of Energy, Accelerator Laboratory, Palo, IBM, Google, Microsoft, Thomson Locations: Palo Alto , California, Silicon, San Francisco
☆ A Laser Fusion Breakthrough Gets a Bigger Burst of Energy
  + stars: | 2023-09-25 | by ( Kenneth Chang | More About Kenneth Chang | ) www.nytimes.com   time to read: +3 min
“We expected a similar yield,” Dr. Town said. The better-than-predicted result indicates that with a few tweaks, laser fusion can become markedly more efficient. “It was a little bit surprising that we did not achieve ignition on all of them,” Dr. Town said. Instead of laser energy arriving perfectly balanced to compress the hydrogen fuel capsule, a slight imbalance nudges the capsule off in one direction. “If you can couple effectively more energy to the hot spot, you should get more yield,” Dr. Town said.
Persons: “, ”, Siegfried Glenzer Organizations: TNT, Livermore, Accelerator Laboratory Locations: Menlo Park, Calif, Livermore
☆ Opinion: The Deep Space Network is in trouble
  + stars: | 2023-09-11 | by ( Opinion Don Lincoln | ) edition.cnn.com   time to read: +6 min
The Deep Space Network, or DSN, is an interconnected set of three radio telescope facilities spread across the globe. Indeed, without the DSN, NASA’s robotic exploration of deep space would simply not be possible. On the contrary, if humanity is going to once again venture into deep space, it will be crucial to be able to maintain a radio link with those intrepid explorers. Both of those missions, indeed all deep space programs, depend on reliable communication, or they will fail. The Deep Space Network is NASA’s link to the planets, and it needs additional support if we ever hope to boldly go where no one has gone before.
Persons: Don Lincoln, James Webb, NASA Artemis, Artemis Organizations: Fermi, Accelerator Laboratory, Facebook, CNN, Space, NASA, Jet Propulsion Laboratory, Telescope, Orion, Twitter, James Webb Space Telescope Locations: California, Spain, Australia
☆ A weirdly wobbly 'muon' particle might revolutionize physics by revealing a 5th force of nature or another dimension
  + stars: | 2023-08-15 | by ( Sonam Sheth | Jessica Orwig | ) www.businessinsider.com   time to read: +5 min
A subatomic particle called the muon is wobbling far more than leading physics models can explain. Its unusual behavior could be evidence of a fifth force of nature or a new dimension. And the reason could be evidence of a new, fifth force of nature. But there are still cosmic wonders we don't understand — mysteries that the discovery of a fifth force of nature may help solve. One possible explanation is that the muons' behavior is dictated by a fifth force of nature.
Persons: Aylin Woodward, Einstein, Rosen, Brendan Casey, Graziano Venanzoni Organizations: Service, Fermi, Accelerator Laboratory, Fermilab, Brookhaven National Lab Locations: Wall, Silicon
☆ The odd behavior of a subatomic particle may shake up physics
  + stars: | 2023-08-10 | by ( Will Dunham | ) www.reuters.com   time to read: +4 min
An experiment studied the wobble of subatomic particles called muons as they traveled through a magnetic field. Fermi National Accelerator Laboratory/Ryan... Read moreWASHINGTON, Aug 10 (Reuters) - The peculiar wobble of a subatomic particle called a muon in a U.S. laboratory experiment is making scientists increasingly suspect they are missing something in their understanding of physics - perhaps some unknown particle or force. The experiment studied the wobble of muons as they traveled through a magnetic field. Casey was alluding to a principle called Lorentz invariance that holds that the laws of physics are the same everywhere. The researchers shot beams of muons into a donut-shaped superconducting magnetic storage ring measuring 50 feet (15 meters) in diameter.
Persons: Ryan, Read, Brendan Casey, Casey, Rebecca Chislett, Chislett, Will Dunham, Rosalba O'Brien Organizations: . Department, Energy's Fermi, Accelerator Laboratory, Fermi, Accelerator, U.S . Energy, Fermilab, " University College London, Thomson Locations: Batavia , Illinois, U.S, WASHINGTON
☆ Physicists Move One Step Closer to a Theoretical Showdown
  + stars: | 2023-08-10 | by ( Katrina Miller | More About Katrina Miller | ) www.nytimes.com   time to read: +1 min
On July 24, a large team of researchers convened in Liverpool to unveil a single number related to the behavior of the muon, a subatomic particle that might open a portal to a new physics of our universe. All eyes were on a computer screen as someone typed in a secret code to release the results. The first number that popped out was met with exasperation: a lot of concerning gasps, oh-my-God’s and what-did-we-do-wrong’s. The new measurement matched exactly what the physicists had computed two years prior — now with twice the precision. “It really all comes down to that single number,” said Hannah Binney, a physicist at the Massachusetts Institute of Technology’s Lincoln Laboratory who worked on the muon measurement as a graduate student.
Persons: ”, Kevin Pitts, Hannah Binney Organizations: Virginia Tech, Fermi, Accelerator Laboratory, Fermilab, Massachusetts Institute, Technology’s, Laboratory Locations: Liverpool, Batavia, Ill
☆ Opinion: Nuclear power is a vital part of climate change solution
  + stars: | 2023-04-24 | by ( Opinion Don Lincoln | ) edition.cnn.com   time to read: +6 min
CNN —Last week, Germany closed its last three nuclear power plants, becoming nuclear free for the first time in 62 years. Following the Fukushima nuclear disaster in 2011, many countries began phasing out nuclear power plants, citing issues of nuclear safety and long-term storage of nuclear waste. Would not generating that power from carbon-free nuclear power plants be preferable? In the US, the regulatory process involved in building a nuclear power plant is slow and obstructive. In addition, modern nuclear power plant designs generate less waste than earlier designs and further improvements should be pursued.
☆ Physicist explains why nuclear fusion is 'inherently safe'
  + stars: | 2023-01-03 | by ( ) www.cnbc.com   time to read: 1 min
Share Share Article via Facebook Share Article via Twitter Share Article via LinkedIn Share Article via EmailPhysicist explains why nuclear fusion is 'inherently safe'Siegfried Glenzer of the SLAC National Accelerator Laboratory discusses the difference between nuclear fission and nuclear fusion.
☆ Scientists build 'baby' wormhole as sci-fi moves closer to fact
  + stars: | 2022-11-30 | by ( Will Dunham | ) www.reuters.com   time to read: +3 min
Scientists have long pursued a deeper understanding of wormholes and now appear to be making progress. It was a "baby wormhole," according to Caltech physicist Maria Spiropulu, a co-author of the research published in the journal Nature. But scientists are a long way from being able to send people or other living beings through such a portal, she said. The researchers observed the wormhole dynamics on a quantum device at Alphabet's Google (GOOGL.O) called the Sycamore quantum processor. A wormhole - a rupture in space and time - is considered a bridge between two remote regions in the universe.
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