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Time crystals for photonics and timetronics Optical biosensors towards the clinic Small tunable X-ray sources may have large impact Light–matter interactions driven by lasers at highest intensities Twisted topological light illuminates molecular chirality Photon-trapping detector Refractive index engineering makes skin transparent Fundamental scaling laws of water-window X-rays from free-electron-driven van der Waals structures A technology friendly photon condensate. Dressing with visible light. Diamond colour centre enables an atomic optical antenna. Revealing the unseeable by digital clearing. Laser nanoprinting of metals. Low-coherence light enhances photonic computing. Photonic solutions help fight climate crisis Dual-comb wonders Shrinking time-domain spectroscopy to atomic dimensions Vibrational imaging goes deeper and finer An all-silicon solution Chiral nonlinear optical inheritance Micro-optics enables directional thermal displays Plasmonics commercialized? Joseph A. Izatt (1962–2024) Extreme nonlinear excitonic interactions Driven by feedback, unlimited by diffraction A leap to highly efficient 2D quantum emitters Efficient infrared imaging Quantum entanglement measures Earth’s rotation Nanoprinting under macro lens Prospects for free-electron lasers powered by plasma-wakefield-accelerated beams All-optical temporal logic gates in localized exciton polaritons Fast and furious X-ray free-electron lasers. Fast free-electron laser targets the future Electrochemistry meets Photophysics for single-molecule localization. Bright terahertz electron gun opens new opportunities. Optical frequency comb for multi-sensors. The X-ray science frontier is ultra-short and ultra-intense. Simple yet powerful. Deep focusing with broadband light. Novel light manipulation. Costas Soukoulis (1951–2024). Strain-induced Landau levels in photonic crystals. All-optical polarization switching in ferroelectrics. Ceramic phosphor creates broadband infrared source. Single molecule localization more precise than ever. Earth’s wobble probed by 16-m2underground laser Andrew M. Weiner (1958–2024) Quantum materials offer modulator hope Petabit optical storage Bigger and better