Thursday, February 19, 2026

Astronomers have determined that one of the longest stellar dimming events ever observed—lasting nearly 200 days—was caused by the gigantic saucer-like rings of either an unseen brown dwarf or 'super-Jupiter' blocking its host star's light 3,200 light-years from Earth.^[1]

Scientists in Japan have discovered a giant virus called ushikuvirus that infects amoebae and shows unique traits connecting different families of giant DNA viruses, providing new evidence for the theory that viruses may have helped create complex cellular life.^[2]

Researchers at Karolinska Institutet and RIKEN have identified two brain receptors that help clear amyloid beta protein, the hallmark of Alzheimer's disease; stimulating these receptors in mice increased levels of a natural amyloid-breaking enzyme and improved memory-related behavior.^[3]

An annular solar eclipse on February 17 produced a 'ring of fire' visible from Antarctica, with ESA's Proba-2 satellite capturing the phenomenon from orbit while researchers at the remote Concordia Research Station witnessed the rare event from the ground.^[4]

Scientists at EPFL have found a way to measure the duration of ultrafast quantum events without relying on an external clock, discovering that these transitions are not instantaneous and that their duration depends on the atomic structure of the material involved.^[5]

Australian scientists have created the world's first proof-of-concept quantum battery that charges, stores, and discharges energy, demonstrating that charging speed increases as the battery gets larger—a behavior enabled by quantum effects such as superposition and entanglement.^[6]

Researchers at the University of Nottingham have found that remembering facts and recalling life events activate nearly identical brain networks, challenging the long-held scientific assumption that different types of memory use distinct neural pathways.^[7]

Scientists at Gladstone Institutes have discovered why living at high altitude appears to protect against diabetes: when oxygen levels drop, red blood cells switch into a new metabolic mode and absorb large amounts of glucose from the blood.^[8]

Scientists in Montréal have demonstrated that light can drift in perfectly quantized steps, mirroring the quantum Hall effect previously seen only in electrons—a breakthrough that could establish a new gold standard for ultra-precise measurements.^[9]

Researchers at the University of York have found that plants produce certain medicinal alkaloid chemicals using genes that resemble bacterial ones, suggesting plants have borrowed microbial tools to create new chemistry—a finding that could help scientists discover new drugs more sustainably.^[10]