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Adding salt to a material lowers its melting point and removes heat. New work describes how to make that process reversible and cyclic.

In that regime, fusion reactions are the plasma’s primary source of heating.

NASA’s InSight is the first mission to explore seismic waves in a planetary body since Apollo 17 in 1972.

In the first century BCE, political instability set the Roman Republic on edge. Researchers have found evidence of an eruption that may have catalyzed the republic’s end.

When an arsenic sulfide pigment chemically degraded, it stripped the painting’s yellow rose of visible details.

The cycle’s catalytic reactions account for just 1% of the Sun’s energy, but they are the dominant energy producers in heavier stars.

After 20 seconds in an optical lattice, the gravitational potential-energy difference between two wavepackets separated by micrometers generates megaradians of phase.

The laureates circumvented an intrinsic limitation in laser technology to develop an amplification protocol now found in nearly every high-power, ultrafast system.

Two research groups demonstrate the coherent interaction between the spin of a single electron and a single microwave photon.

A long-sought structural and electronic analogue of the cuprate superconductors has finally been synthesized.

A new star survey and statistical analysis vindicate a 50-year-old theory.A new star survey and statistical analysis vindicate a 50-year-old theory.

When a few ultracold atoms are repeatedly trapped and imaged tens of thousands of times, self-organized patterns emerge out of the quantum blue.

In a tunable, doubly resonant optical cavity, two distinguishable photons can strongly couple to the same atom and thus to each other.

When certain inorganic reactions are confined to a two-dimensional cell, the mineral precipitates conform to a simple geometric model.

A change in the cross section and orientation of the laser’s optical cavity collimates an otherwise highly divergent terahertz-frequency beam.

Although the craters likely formed about 12 000 years ago, methane is still leaking profusely around and between them.

Topological defects trigger the death and removal of cells. Topological defects trigger the death and removal of cells.

Silicon carbide devices lasted more than three weeks in a laboratory simulation of the corrosive conditions that prevail on the planet’s surface.

According to new electronic structure calculations, the shells and subshells of Og are spread out like a homogenous electron gas. According to new electronic structure calculations, the shells and subshells of Og are spread out like a homogenous electron gas.

Long thought to be the building blocks of planets, the small orbs in meteorites may instead be a by-product of planetary accretion.

A new analysis of cave stalagmites almost doubles the span of known variations in rainfall over East Asia.

A compact spectroscopic system can measure radioactive carbon dioxide concentrations as low as five parts per quadrillion.

The time it takes a proxy fault to slip can be inferred from the subtle acoustical signals it emits. The time it takes a proxy fault to slip can be inferred from the subtle acoustical signals it emits.

A nanotube field-effect transistor can now be made as short as 40 nm, less than half the size of the smallest silicon equivalent.

Although the craters formed about 12 000 years ago, the processes that led to them may be recurring under today’s retreating ice sheets. Although the craters formed about 12 000 years ago, the processes that led to them may be recurring under today’s retreating ice sheets.

When a material’s index of refraction is zero, strange things can happen to an electromagnetic wave passing through it. When a material’s index of refraction is zero, strange things can happen to an electromagnetic wave passing through it.

A silicon carbide circuit lasted more than three weeks in a laboratory simulation of the corrosive conditions that prevail on the planet’s surface.

A mathematical technique exploits the natural fluctuations in the light-induced ultrasound emitted by flowing red blood cells.

The time it takes a random walker to find all the targets in a given domain can be determined from the average time it takes to find just one of them.

The composite is hundreds of times more electrically sensitive to temperature than the best previous materials used for thermal sensors.

Atmospheric maps and in situ spectrometry of clay minerals constrain climate models and the prevalence of water in the planet’s ancient past.

An analysis of their orbits and masses indicates that the pair is a plausible supernova progenitor.

An obstacle dragged through a Bose–Einstein condensate leaves a well-known pattern of vortices in its wake. An obstacle dragged through a Bose–Einstein condensate leaves a well-known pattern of vortices in its wake.

Isotopic analysis of cave stalagmites connects the intensity of rainfall over East Asia and ice-age terminations.

A compact spectroscopic system can measure radiocarbon dioxide concentrations as low as 5 parts per 1015.

To investigate the fission of charged droplets, a pair of chemists holds one stationary in electrified midair.

When a material’s index of refraction is zero, strange things happen to an electromagnetic wave passing through it.

Femtosecond electron bunches extracted from a laser-cooled gas cloud could become a powerful tool for macromolecular studies.

Sound and heat in the wake of a femtosecond laser pulse can produce a refractive-index gradient that channels subsequent higher-power pulses.

A new technique exploits the inverse relation between temperature and the linewidth of a proton resonance.

In 2004 the laureates sparked, and then participated in, an explosion of experimental and theoretical work on the single-layer material.

A single strand of optical fiber illuminated with pulsed laser light mimics a linear array of seismometers.

Microscopic features on a wall can have an enormous influence on macroscopic flows along it.

Recent local measurements and numerical simulations constrain the possible mechanisms for glacial dynamics that occur on the time scale of minutes.

A magnet has two poles—north and south. But in a frustrated magnetic state known as spin ice, the familiar magnetic dipole can split into two magnetic charges that independently diffuse around the crystal.