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Space sensor could spot hidden nuclear weapons in orbit with 99% accuracy

In 2024, a U.S. government official warned that Russia could be developing a new satellite designed to carry nuclear weapons into space. The statement followed the launch of a suspicious Russian satellite into low-Earth orbit in 2022, just a few weeks before the country’s full-scale invasion of Ukraine.

A nuclear detonation in low-Earth orbit—the region about 100 miles to 1,200 miles above Earth’s surface—would release trillions of highly energetic electrons that would destroy many of the satellites in space, disrupting telecommunications networks, GPS, space-based internet and more.

The 1967 Outer Space Treaty bans the placement of nuclear weapons in space, but there’s currently no way to verify satellites don’t contain nuclear weapons. In fact, no verification methods have even been proposed in unclassified, peer-reviewed literature.

Fractional Fermi Sea: Physicists Discover a New Phase of Matter Beyond Established Theory

Scientists have engineered a never-before-seen quantum state, uncovering a new phase of matter with hidden order beyond conventional theory.

Researchers have shown that an unusual quantum state known as a “fractional Fermi sea” can be deliberately created, opening the door to a previously unknown phase of matter. The work, published in Physical Review Letters, was carried out by the Nägerl group together with theoretical collaborator Alvise Bastianello of the CNRS and Université Paris-Dauphine. The study provides the theoretical foundation for recent experimental work led by Hans-Christoph Nägerl’s group in the Department of Experimental Physics.

Creating a New Quantum State.

X-pinch plasma achieves radial proton acceleration for crisp imaging

Plasma pinches: From pursuits of nuclear fusion to an attractive point source of accelerated protons for proton radiography.

Protons accelerated in a radial direction were discovered and used for the first time from pinch plasmas—current-carrying plasma columns compressed by their own magnetic field—according to a study led by the Czech Technical University in Prague and University of Michigan Engineering.

The researchers accelerated protons to 3 mega electron volts (MeV) on relatively small-scale devices operating at a 400-kiloampere (kA) peak current. This expands access to proton radiography, a technique for imaging the ultra-fast evolution of electric and magnetic fields in plasma, once limited to sophisticated, expensive and often massive laser facilities like the OMEGA and OMEGA-EP laser systems at the University of Rochester’s Laboratory for Laser Energetics.

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