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Updated: 3 hours 17 min ago

C.D.C. Weighs Advising Everyone to Wear a Mask

5 hours 59 sec ago
Widespread use of nonmedical masks could reduce community transmission. But recommending their broad use could also cause a run on the kind of masks that health care workers desperately need.

Coronavirus Live Updates: Three Out of Four Americans Ordered to Stay Home

15 hours 25 min ago
Leaders around the world are using the pandemic as pretext for seizing virtually dictatorial authority. In the U.S., President Trump said the states had plenty of testing kits, but governors disagreed.

Creatures in This Underwater Forest Could Save Your Life One Day

Mon, 03/30/2020 - 23:30
Before this 60,000-year-old submerged forest disappears, scientists recently raced to search for shipworms and other sea life that might conceal medicine of the future.

D.I.Y. Coronavirus Solutions Are Gaining Steam

Mon, 03/30/2020 - 23:30
From Ireland to Seattle, makers and engineers are creating open-source versions of much-needed medical equipment.

Live Coronavirus News and Updates

Mon, 03/30/2020 - 21:38
Maryland, Virginia and Arizona issued statewide stay-at-home orders, and the F.D.A. granted emergency approval for the use of two malaria drugs to treat some coronavirus patients.

Restrictions Are Slowing Coronavirus Infections, New Data Suggest

Mon, 03/30/2020 - 15:52
A database of daily fever readings shows that the numbers declined as people disappeared indoors.

Coronavirus and Sex: Questions and Answers

Mon, 03/30/2020 - 13:17
Some of us are mating in actual captivity. Some of us not at all. The pandemic raises lots of issues around safe intimate physical contact, and what it may look like in the future.

Philip W. Anderson, Nobel Laureate in Physics, Is Dead at 96

Mon, 03/30/2020 - 12:27
His work at Princeton and Bell Labs deepened science’s understanding of magnetism, superconductivity and the structure of matter.

This Fireball Ignored the Solar System’s One-Way Signs

Mon, 03/30/2020 - 12:25
A meteoroid that grazed the night sky over Australia in 2017 took a very unusual path away from Earth.

Vodka From Thin Air: An Unusual Climate Prize Hits a Coronavirus Snag

Mon, 03/30/2020 - 12:12
Inventors were about to test their ideas for making money by selling things made out of carbon dioxide, the main culprit in global warming. Then the pandemic struck.

Trump Administration, in Biggest Environmental Rollback, to Announce Auto Pollution Rules

Mon, 03/30/2020 - 10:53
The Trump administration has finalized new fuel efficiency standards, lowering expectations from 54 miles per gallon by 2025 to 40 miles a gallon by 2030.

Coronavirus Live Updates: U.S. Extends Social Curbs After Estimate of 200,000 Deaths

Mon, 03/30/2020 - 06:10
Americans were told to avoid nonessential travel and gatherings of more than 10 people until at least April 30. Spain asked residents to go into “hibernation.” Prince Charles came out of isolation, while an adviser to Prime Minister Boris Johnson went into quarantine.

Inside G.M.’s Race to Build Ventilators, Before Trump’s Attack

Mon, 03/30/2020 - 05:58
The automaker and its partner, Ventec, had spent more than a week figuring out how to make thousands of the lifesaving devices when the White House said G.M. was “wasting time.”

Coronavirus Live Updates: 200,000 Americans Could Die, Warn Top Health Officials

Mon, 03/30/2020 - 00:21
President Trump extended social distancing guidelines to April 30 as cases in the U.S. topped 140,000. The doctors advising him said without any restrictions on movement that more than 1 million Americans could die.

Live Coronavirus News Coverage and Updates

Sun, 03/29/2020 - 18:36
The global count has passed 700,000, an official warns Britain that some kind of lockdown may last for months and Joe Biden urges mail-in elections.

China Created a Fail-Safe System to Track Contagions. It Failed.

Sun, 03/29/2020 - 12:18
After SARS, Chinese health officials built an infectious disease reporting system to evade political meddling. But when the coronavirus emerged, so did fears of upsetting Beijing.

Coronavirus Live Updates: Trump Drops Idea of Quarantining New York Region

Sun, 03/29/2020 - 00:17
India’s abrupt nationwide lockdown left hundreds of thousands of laborers homeless and prompted one of the largest migrations in the country’s modern history.

‘Women Will Not Be Forced to Be Alone When They Are Giving Birth’

Sat, 03/28/2020 - 17:31
In response to some private hospitals’ decision to bar partners, New York will order all hospitals to allow partners in delivery rooms, despite the coronavirus risk.

FEMA Says at Least 7 People at the Disaster Agency Have the Coronavirus

Sat, 03/28/2020 - 15:41
Union officials at FEMA say they would like to know where they work in order to warn other employees who might be exposed and to avoid putting the public at added risk.

The Lost Month: How a Failure to Test Blinded the U.S. to Covid-19

Sat, 03/28/2020 - 12:22
Aggressive screening might have helped contain the coronavirus in the United States. But technical flaws, regulatory hurdles and lapses in leadership let it spread undetected for weeks.