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synopsis

Inferring the Composition of High-Energy Cosmic Rays

Failing to see any high-energy neutrinos allowed researchers to calculate an upper limit on the fraction of high-energy cosmic rays that are protons. Read More »

Research News

The Healthy Glow of Plants

A drone-borne photon counter can provide a new view into environmental health. Read More »

Viewpoint

Optimizing Diamond as a Quantum Sensor

Two independent groups optimize diamond-based quantum sensing by using more than 100 such sensors in parallel. Read More »

Focus

Reconstructing a Five-Star Smashup

A detailed analysis of a stellar cluster has led to a possible explanation for several fast-moving runaway stars around the cluster. Read More »

synopsis

Photonic Spin Textures

An arrangement of spins known as a meron turns out to be easier to make in momentum space than in real space. Read More »

Focus

Mimicking a Cosmic Accelerator

A mechanism for accelerating charged particles in astrophysical plasmas has been reproduced with cold atoms in an optical trap. Read More »

synopsis

Faster Rankings for Group Contests

A new algorithm efficiently ranks competitors in settings ranging from sports tournaments to food-preference surveys. Read More »

synopsis

Quantum Fluid Mimics Black Hole’s Horizon

A fluid made of light can simulate a black hole’s boundary, providing insights into the mysterious quantum phenomena that occur at such a boundary. Read More »

Research News

Turbulent Waves Behave like a Gas

Experiments with turbulent waves show that energy spreads from small to large scales, producing a steady-state regime that can be described using classical thermodynamics. Read More »

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