Stephen Hawking, who died in 2018, predicted black-hole behaviour almost five decades ago. Photograph: Frederick M Brown/Getty

A recent study of black holes confirmed a fundamental prediction that the theoretical physicist made nearly five decades ago. But the ultimate awar(...)

Skin crawling: a bedbug, as seen under a scanning electron microscope. Photograph: David Spears/Corbis/Getty

In a way, nausea is our trusty personal bodyguard. Feeling nauseated is widely accepted to be an evolutionary defence measure that protects people fro(...)

Nurse Paula McMahon prepares a dose of the Pfizer-BioNTech Covid-19 vaccine at the Louisa Jordan Hospital in Glasgow. Photograph: Jeff J Mitchell /Pool/AFP

The coronavirus vaccine made by Pfizer and BioNTech provides strong protection against Covid-19 within about 10 days of the first dose, according to d(...)

Terry Tao. Photograph: Graeme Mitchell/The New York Times

Pick a number; if it is even, divide it by 2; if odd, triple it and add 1. Now repeat the process, each time halving or else tripling and adding 1. He(...)

Prof Terry Tao’s Hamilton lecture will draw on his childhood fascination with astronomy and distances between planets.

Terry Tao is probably the world’s best problem solver in mathematics – the skill that is the essence of this essential creative science. So it’s more(...)

Firefighters cut defensive lines and light backfires to protect structures behind a CalFire fire station during the Bear fire, part of the North Lightning Complex fires in Butte County, California. Photograph: Getty

An unprecedented spate of fierce, wind-driven wildfires in all US west-coast states have destroyed thousands of homes and killed at least seven people(...)

Vehicles line up at a drive-through testing site for coronavirus in Dallas. Photograph: Nitashia Johnson/The New York Times

US federal health officials are already trying to decide who will get the first doses of any effective coronavirus vaccines, which could be on the mar(...)

The Gran Sasso National Laboratory in Italy, the largest underground laboratory in the world devoted to neutrino and astroparticle physics. Photograph: Alberto Pizzoli/AFP/Getty Images

Although abstract in character, mathematics has concrete origins: the greatest advances have been inspired by the natural world. Recently, a new resul(...)

Embers fly from a tree as the Kincade Fire burns near Geyserville in California. Photograph: AP

Californians braced for power cuts and a “potentially historic” wind event on Saturday as a growing wildfire prompted fresh evacuations for 50,000 peo(...)

Deborah Huffman  in the bathroom of her home, where she worked up  the nerve to show her husband her back, and tell him about her skin-picking disorder. Photograph: Christopher Lee/ The New York Times

When Deborah Huffman went for her annual physical a few years ago, she saw a new doctor who handed her a paper gown, instructing her to leave it open (...)

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