Scientists bring the fusion energy that lights up the sun and stars closer to reality on Earth

Physicist Min-Gu Yoo with slices of his paper in the background. Credit: Elle Starkman/PPPL Office of Communications; Collage by Kiran Sudarsanan Physicists at the US Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have suggested the source of the sudden, baffling heat meltdown that precedes perturbations that could damage the bun-shaped tokamak fusion facilities. … Read more

Mysterious radiation explosions threaten cabin crew

On October 3, 2015, a National Science Foundation Gulfstream V research aircraft recorded a massive spike in atmospheric radiation as it flew over the South Atlantic Ocean between Antarctica and the tip of South America. For 11 minutes, the radiation detector on board watched the levels double, as if the plane had flown through a … Read more

A team of physicists finds signs of states of pentaquarks and new matter

production mechanisms. The upper panel shows the schematics of the quark line at the electroweak peak, and the lower panels show the corresponding production scheme for the computer cases. (a) color-enhanced, (b) color suppression, and (c) non-analysable color suppression mechanisms. Credit: TJ Burns et al, physical review d (2022). DOI: 10.1103/ PhysRevD.106.054029 Theorists at the … Read more

No one in physics would dare say it, but the race to invent new particles is pointless | Sabine Huseinfelder

IImagine you are going to a zoology conference. The first speaker talks about her 3D model of a 12-foot purple spider that lives in the Arctic. There’s no evidence of their existence, she admits, but it’s a testable hypothesis, and she argues that a mission should be sent to search the Arctic for spiders. The … Read more

Einstein’s test of general relativity has big implications

The researchers used a satellite orbiting the Earth to do this Very accurate test It is a fundamental premise of Einstein’s general theory of relativity, which is the modern theory of gravitation. The question is whether two different types of mass – gravitational and inertial – are identical. Scientists found that two objects aboard the … Read more

Hurricanes orbiting Jupiter’s poles still baffle astronomers

Infrared image of Jupiter’s northern hemisphere as seen by Jerram. attributed to him: natural astronomy (2022). DOI: 10.1038 / s41550-022-01774-0 A team of multi-institutional space scientists in the United States, working with a colleague from Italy and one from France, used modeling to partly explain the resilience of hurricanes orbiting around Jupiter’s poles. In their … Read more

Scientists trace high-energy particles to the sun’s plasma

Scientists may have discovered when and how the high-energy particles that bombard the Earth and other objects emerge from violent environments like sun atmosphere. These high-energy particles pose a threat to sensitive satellite technology And astronauts, and can even affect aircraft flying over the North Pole. Although researchers have been studying these particles for decades, … Read more

Surprising new features of mysterious fast radio bursts challenge current understanding

Technical rendering of the Five Hundred Meter Aperture Spherical Radio Telescope (FAST) in China. Credit: Jingchuan Yu Fast Radio Bursts – A deep and puzzling puzzle An international team of scientists reveals the evolving, magnetized environment and location of a surprising source of fast radio bursts in deep space – observations that challenge current understanding. … Read more

NASA prepares to deflect an asteroid, in a major test of planetary defense

A man sits at his work station inside the mission operations center of the Dual Asteroid Redirection Test (DART) spacecraft, which is rapidly approaching its target. I bet dinosaurs wish they’d thought about that. On Monday, NASA will attempt a feat humanity has never accomplished before: deliberately smashing a spacecraft into an asteroid to twist … Read more