Wednesday, February 25, 2026

Washington University School of Medicine researchers developed a blood test that can predict when Alzheimer's symptoms will begin, using a protein called p-tau217 to estimate onset within three to four years, potentially accelerating clinical trials for preventive treatments.^[1]

Scientists at Stanford Medicine developed a universal nasal spray vaccine that protected mice against COVID-19, influenza, bacterial pneumonia, and allergens by supercharging the lungs' immune defenses rather than targeting specific pathogens.^[2]

Six planets—Mercury, Venus, Neptune, Saturn, Uranus, and Jupiter—will align in a rare 'planetary parade' visible after sunset on February 28, with four planets visible to the naked eye and the remaining two requiring binoculars.^[3]

Scientists completed Erwin Schrödinger's century-old theory of color perception by mathematically defining how humans experience hue, saturation, and lightness, correcting long-standing flaws in the model through advanced geometry.^[4]

Geologists discovered that the King's Trough Complex, a 500-kilometer underwater canyon system off Portugal that dwarfs the Grand Canyon, formed when a temporary plate boundary between Africa and Eurasia tore the Atlantic seafloor apart 37 million years ago.^[5]

A total lunar eclipse will produce a 'blood moon' visible across western North America, Australia, New Zealand, and eastern Asia on March 3, with the Moon glowing red for 58 minutes during totality—the last total lunar eclipse until late 2028.^[6]

University of Exeter researchers identified three existing medications—the shingles vaccine Zostavax, Viagra (sildenafil), and riluzole—as promising candidates for repurposing to treat or prevent Alzheimer's disease after reviewing 80 drugs.^[7]

Harvard applied physicists discovered a new way to generate ultra-precise, evenly spaced 'combs' of laser light on a photonic chip, a breakthrough that could advance telecommunications and precision measurement technologies.^[8]

Kim Yo-jong, sister of North Korean leader Kim Jong-un, was promoted to department director and reinstated as an alternate member of the Politburo during the Workers' Party congress, positioning her as a central figure in Pyongyang's external strategy.^[9]

The Russia-Ukraine war marks its fourth anniversary on February 24, with Russia occupying approximately 20 percent of Ukrainian territory as European leaders pledge continued support and multilateral negotiations continue through U.S. mediation.^[10]