Science
Math That Helped Solve Fermat’s Theorem Now Safeguards the Digital World

Defenses against digital snoopers keep getting stronger. Encryption is what keeps communications safe when you use Signal and other messaging apps, make online financial transactions, buy and sell cryptocurrencies like Bitcoin and trust that private information in your Apple iPhone will stay private. While a variety of end-to-end encryption techniques seek to protect the flows […]

Updated: Jan 31, 2022
4.1-Magnitude Earthquake Rattles Parts of California

Sandra Herrera was getting dressed on Sunday morning when the ground started shaking. She felt two big jolts and heard a low rumbling. “I thought it could be the Big One,” said Ms. Herrera, 22, referring to the long-feared earthquake in California. It was not. Still, the 4.1-magnitude earthquake that rattled parts of Southern California, […]

Updated: Jan 30, 2022
Jeremiah Stamler, Who Found Ways to Curb Heart Disease, Dies at 102

A third study, begun about 30 years ago and still ongoing, looks at dietary factors besides salt, like animal protein, that contribute to high blood pressure. “I remember there being criticism that he was an older man in his 70s, and could he complete the five years of the project,” Dr. Philip Greenland, a professor […]

Updated: Jan 30, 2022
China’s Covid-Era Controls May Outlast the Coronavirus

The police had warned Xie Yang, a human rights lawyer, not to go to Shanghai to visit the mother of a dissident. He went to the airport anyway. His phone’s health code app — a digital pass indicating possible exposure to the coronavirus — was green, which meant he could travel. His home city, Changsha, […]

Updated: Jan 30, 2022
‘Stealth’ Omicron Variant No Cause for Alarm, but Could Slow Case Decline

In recent days, headlines about a “stealth” Omicron variant have conjured the notion that a villainous new form of the coronavirus is secretly creating a disastrous new wave of Covid. That scenario is highly unlikely, scientists say. But the new variant, which goes by the scientific name BA.2 and is one of three branches of […]

Updated: Jan 30, 2022
Orcas Are Able to Kill and Eat Blue Whales, Scientists Confirm

In March 2019, scientists studying whales near Southwestern Australia stumbled upon a supersize spectacle that few had seen before — a pod of orcas viciously attacking a blue whale. Over a dozen orcas surrounded the mighty animal. They had already bitten off its dorsal fin, and the animal was unable to evade the fast and […]

Updated: Jan 29, 2022
Judges Increasingly Demand Climate Analysis in Drilling Decisions

WASHINGTON — A judge’s decision this week to invalidate the largest offshore oil and gas lease sale in the nation’s history, on grounds that the government had failed to take climate change into consideration, shows that regulatory decisions that disregard global warming are increasingly vulnerable to legal challenges, analysts said Friday. Judge Rudolph Contreras of […]

Updated: Jan 29, 2022
John Kerry, U.S. Climate Envoy, Tells Top Polluters ‘We Must All Move Faster’

WASHINGTON — John Kerry, President Biden’s global climate envoy, warned nations Thursday that the world is “not on a good track” to meet its goal of pivoting away from fossil fuels in order to avoid the most dangerous consequences of climate change. At a virtual meeting of the world’s most polluting countries — including China, […]

Updated: Jan 28, 2022
In Dog DNA, Small Size Has an Ancient Pedigree

There’s no single gene that determines dog size, according to Dr. Ostrander, a dog genomics expert at the National Institutes of Health. There are about 25. She and other scientists found the first known dog size gene, and one of the most significant, in 2007. It’s called IGF1. The importance of the gene has been […]

Updated: Jan 27, 2022
Yes, Omicron Is Loosening Its Hold. But the Pandemic Has Not Ended.

After a frenetic few weeks when the Omicron variant of the coronavirus seemed to infect everyone, including the vaccinated and boosted, the United States is finally seeing encouraging signs. As cases decline in some parts of the country, many have begun to hope that this surge is the last big battle with the virus — […]

Updated: Jan 27, 2022