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Tech Xplore / In Finland, radioactive spent nuclear fuel soon to be buried underground

The elevator display reads "433", the number of meters below ground. The doors slide open, revealing the entrance to what is expected to be the world's first permanent repository for radioactive spent nuclear fuel.

18 hours ago
Phys.org / Fiber optic components enable high-performance 2-µm fiber lasers

Laser systems operating in the 2-micrometer wavelength range open diverse opportunities in medical technology, agriculture, and plastics processing. In the Eurostars project DECOMP, Laser Zentrum Hannover e.V. (LZH) has developed ...

5 hours ago
Medical Xpress / Can AI beat breast cancer?

An artificial intelligence (AI) system that combines breast cancer tissue images with molecular marker data achieves high accuracy in diagnosis, tumor classification, and survival prediction. Details of the research are reported ...

5 hours ago
Tech Xplore / Efficiently cooling satellite components in space

Space is a vacuum. Heat therefore cannot be transferred to the surroundings by thermal conduction. This poses a problem for any type of space-capable electronics, which can quickly overheat under these conditions. The only ...

10 hours ago
Phys.org / Taking dark energy out of the equation: Mathematicians challenge the standard cosmological model of the universe

Mathematicians are challenging the idea that dark energy is responsible for the accelerating expansion of the universe. In a new paper published in Proceedings of the Royal Society A, mathematicians from the University of ...

May 28, 2026
Phys.org / JWST finds a stellar bar in the early universe that breaks all rules

Astronomers using the James Webb Space Telescope (JWST) have discovered a stellar bar in GN20, a massive galaxy seen just 1.5 billion years after the Big Bang. The new paper was submitted to the preprint server arXiv on May ...

May 31, 2026
Phys.org / Could aliens ever visit Earth? An aerospace scientist unpacks the challenges of interstellar spaceflight

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the culmination of a process that was set in motion ...

May 27, 2026
Phys.org / Supermassive black holes could be the universe's biggest planet nurseries

Supermassive black holes are the largest known black holes in the universe, sitting at the center of most large galaxies. They are sometimes described as cosmic monsters because they feed on surrounding gas and dust when ...

May 31, 2026
Phys.org / Webb reveals black hole that formed before its galaxy

Which comes first, the galaxy or the black hole? We don't know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel and collapse to form black holes, which can ...

May 29, 2026
Phys.org / Listening to the sun reveals previously hidden changes to solar cycle

Internal changes due to the sun's "active biorhythm" have become increasingly "skin-deep" over the past four solar activity cycles, according to a new study.

May 27, 2026
Medical Xpress / Move more for your health, not just for the scale

With obesity now affecting more than 40% of U.S. adults and fueling rising rates of heart disease, a new scientific statement from the American Heart Association calls for a comprehensive treatment approach that puts physical ...

17 hours ago
Phys.org / The solar wind's secret hammerheads and what they tell us about heat in space

The proton sharks showed up on a Friday. In a routine data calibration meeting for NASA's Parker Solar Probe in 2020, a small group of scientists were scrolling through visualizations of their data showing solar winds. Suddenly, ...

May 28, 2026