Scientists just invented a safer non-stick coating—and it’s inspired by arrows - Science Daily

The idea of Vikings using fire arrows to set funeral boats ablaze is seen frequently in popular culture. But did it really happen?

A PFAS-free coating could help protect aircraft, wind turbines, and power lines from hazardous ice buildup. Nature has mastered the art of repelling water, and scientists have long mimicked these strategies in manmade materials. But frost and freezing rain can quickly undermine even highly water-repellent surfaces.

A recently developed ultra-black coating not only efficiently absorbs light, but is also extremely thin and durable, enabling its potential use on starshades that could someday support the imaging of exoplanets and potentially facilitate the detection of life beyond our solar system. The light emitted by a star can be billions of times brighter than the light reflected from its surrounding planets. This bright starlight makes it very difficult for a space telescope to image an exoplanet — it’s like trying to find the light reflected from a gnat that is flying near a spotlight. In addition, the light from our Sun scatters off spacecraft surfaces and back into the telescope, contributing even more light “pollution” that can easily obscure the dim light reflected from an exoplanet.

Julia Margaret Cameron, photographic portrait of Charles Darwin, 1868. From the D. Hall Darwin-Wallace Collection. Rare books, documents, letters and images from famous evolutionary biologists are on display this fall at the U of C’s Nickle Galleries.

For more than 150 years, a reported 16-minute train delay in Exeter, England, was cited as a possible early example of a solar storm disrupting human technology. But a railway timetable revealed a problem with the story: the railway line in question did not exist in 1841. According to a report published by ScienceDaily on October 21, 2026, researchers have now traced the incident to October 18, 1848, using historical railway records, newspaper accounts and measurements of Earth’s magnetic field. The findings were published in the journal Space Weather. The train delay that could not have happened in 1841The mystery originated in an account published anonymously in the scientific journal Nature on October 5, 1871. It described a “very intense magnetic disturbance” on October 18, 1841, which allegedly interfered with railway telegraph equipment in Exeter, a city in southwest England. According to the account, the disturbance prevented railway staff from establishing whether the track ahead, near the village of Starcross, was clear. As a result, the scheduled 10.05 pm express train from Exeter towards Newton Abbot was held up for 16 minutes.