A reconstruction of a Viking-age church at Norstead, Newfoundland, near the L’Anse aux Meadows, site of a settlement of Vikings who were present in 1021.Credit...Glenn Nagel Photography Six decades ago, a husband-and-wife team of archaeologists discovered the remains of a settlement on the windswept northern tip of Newfoundland. The site’s eight timber-framed structures resemble Viking buildings i
When our sun enters its death throes in about five billion years, it will incinerate our planet and then dramatically collapse into a dead ember known as a white dwarf. But the fate of more distant planets, such as Jupiter or Saturn, is less clear. On Wednesday in the journal Nature, astronomers reported observing a tantalizing preview of our solar system’s afterlife: a Jupiter-size planet orbitin
Allison Draper loved anatomy class. As a first-year medical student at the University of Miami, she found the language clear, precise, functional. She could look up the Latin term for almost any body part and get an idea of where it was and what it did. The flexor carpi ulnaris, for instance, is a muscle in the forearm that bends the wrist — exactly as its name suggests. Then one day she looked up
At the bottom of the Pacific Ocean, cylindrical clusters of the glass sponge Euplectella aspergillum jut upward like skyscrapers in the deep sea. Some house tiny shrimp, to whom an 11-inch sponge is essentially a high-rise. And the sponge’s glass skeleton is certainly a feat of architecture, comprising a geometric latticework that gives the sponge the illusion of being wrapped in lace. Yet it is e
For Mr. Biden, the last of four American presidents to face painful choices in Afghanistan but the first to get out, the debate about a final withdrawal and the miscalculations over how to execute it began the moment he took office. “Under Trump, we were one tweet away from complete, precipitous withdrawal,” said Douglas E. Lute, a retired general who directed Afghan strategy at the National Secur
KANDAHAR, Afghanistan — The surrenders seem to be happening as fast as the Taliban can travel. In the past several days, the Afghan security forces have collapsed in more than 15 cities under the pressure of a Taliban advance that began in May. On Friday, officials confirmed that those included two of the country’s most important provincial capitals: Kandahar and Herat. The swift offensive has res
TOKYO — When Laurel Hubbard, a 43-year-old weight lifter from New Zealand, makes her first attempt in the women’s heavyweight competition on Monday, she will become the first openly transgender female athlete to compete at the Olympics. Yet she will do so amid a debate over whether she should be at the Games at all. Athletes, advocates for women’s sports and fair-sport campaigners have questioned
Imagine a bunch of beetles minding their own business on an algae-covered rock. All of a sudden, they get hoovered up whole into the beak of a slim, long-necked dinosaur ancestor. R.I.P. — but on the bright side, through a complex combination of luck and microbial activity, their tiny corpses become frozen in time. And over 200 million years later, scientists uncover them while rooting around in f
There were curious characteristics about the H1N1 influenza pandemic of 1977-78, which emerged from northeastern Asia and killed an estimated 700,000 people around the world. For one, it almost exclusively affected people in their mid-20s or younger. Scientists discovered another oddity that could explain the first: It was virtually identical to a strain that circulated in the 1950s. People born b
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