A new United Nations report says militants and police units in Gaza publicly beat, maimed and even executed dozens of Palestinians during Hamas’ war with Israel in acts amounting to war crimes.

Nature - Triple-junction solar cells with improved carrier and photon management

Researchers from the Photovoltaics and Thin-Film Electronics Laboratory (PV-Lab) in EPFL's School of Engineering and CSEM have developed a new solar cell that combines exceptional voltage, high efficiency, and scalable manufacturing.

Perovskite photovoltaics entered a transformative phase in 2025, characterized by the widespread transition from n–i–p to p–i–n architectures, rapid progress in tandem device integration and improvements in long-term operational stability. These advances collectively highlight the maturation of perovskite solar cells towards commercial viability and industrial scalability.

Two-dimensional perovskites enable high efficiency in perovskite photovoltaics but compromise operational stability. Yaghoobi Nia et al. form two-dimensional perovskite co-crystals with neutral templating molecules, improving the stability of perovskite solar modules.

Metal halide perovskites exhibit anharmonic lattice vibrations, which lead to high rates of thermal expansion in solar cells. In this Review, Julian A. Steele links the atomistic origins of these effects to the macroscopic thermo-mechanical properties of the materials and devices.

F.B.I. agents searched a Fulton County, Ga., election center for ballots from 2020, escalating an investigation of a heavily Democratic jurisdiction the president has criticized over his defeat.

Shot and killed by immigration agents on a Minneapolis street, he wanted to be a ‘force of good in the world.’

An I.C.U. nurse shot by federal agents was an American citizen with no criminal record, the city police chief said. A New York Times video analysis shows he was holding a phone, not a gun.

Point defects critically influence material properties and require accurate computational modelling for reliable predictions. This Perspective outlines best practices for defect simulations using supe...

The performance of inverted perovskite solar cells has been limited by non-radiative recombination at the perovskite surfaces. Here, authors employ phosphonic acids and piperazinium chloride for homogeneous passivation, achieving certified efficiency of 28.9% for 60 cm2 perovskite-silicon tandems.