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Updated: 38 min 14 sec ago

New Technique Unfolds Centuries of Secrets in Locked Letters

1 hour 14 min ago
M.I.T. researchers have devised a virtual-reality technique that lets them read old letters that were mailed not in envelopes but in the writing paper itself after being folded into elaborate enclosures.

Miami Says It Can Adapt to Rising Seas. Not Everyone Is Convinced.

1 hour 14 min ago
Officials have a new plan to manage rising water. Succeed or fail, it will very likely become a case study for other cities facing climate threats.

Once Upon a Time on Mars

Mon, 03/01/2021 - 23:30
A dune buggy is about to set off on behalf of its human owners to fulfill a primordial yearning.

Virus Variant in Brazil Infected Many Who Had Already Recovered From Covid-19

Mon, 03/01/2021 - 19:48
The first detailed studies of the so-called P.1 variant show how it devastated a Brazilian city. Now scientists want to know what it will do elsewhere.

Neanderthals Listened to the World Much Like Us

Mon, 03/01/2021 - 16:18
A reconstructed Neanderthal ear adds a new piece to the puzzle of whether the early humans could speak.

High Turnover at Nursing Homes Threatens Residents' Care

Mon, 03/01/2021 - 13:48
A new study highlights the persistent problems caused by an unstable work force, an underlying threat that may have led to staggering death tolls in the pandemic.

This Bird Wasn’t Seen for 170 Years. Then It Appeared in an Indonesian Forest.

Mon, 03/01/2021 - 12:26
The black-browed babbler has long been one of Indonesia’s most enigmatic birds.

A Covid Vaccine Side Effect, Enlarged Lymph Nodes, Can Be Mistaken for Cancer

Mon, 03/01/2021 - 12:14
The condition is becoming more common as immunization rates increase. Experts are suggesting ways to ease patients’ fears and avoid needless testing.

Surf’s Up. The Temperature Isn’t.

Mon, 03/01/2021 - 02:00
Growing numbers of surfers are taking to the Great Lakes — even when the weather is well below freezing.

Covid Vaccines: Johnson & Johnson's shot authorized by F.D.A.

Sat, 02/27/2021 - 17:19
The authorization of a third Covid-19 vaccine will bring millions more doses within days. But health officials worry that some people will see the vaccine as the inferior choice.

Vulnerable Inmates Left in Prison as Covid Rages

Sat, 02/27/2021 - 10:58
At a federal compound in Connecticut, inmates in precarious health “are like sitting ducks,” one lawyer said.

F.D.A. Expert Panel Endorses Johnson & Johnson’s Vaccine

Fri, 02/26/2021 - 15:25
With this last hurdle cleared, formal authorization of the one-dose vaccine is expected on Saturday and distribution within days.

Want to Buy a Scrunchie Mask? Great. But Forget About That N95.

Fri, 02/26/2021 - 13:43
Scientists are urging Americans to upgrade their face coverings. But Amazon, Google and Facebook restrict the sale of medical-grade masks. Critics say the rules are outdated.

Recluse Spiders at University of Michigan Cause Brief Library Closure

Fri, 02/26/2021 - 05:06
The discovery of Mediterranean recluse spiders at the University of Michigan prompted a two-day closure of one of its libraries.

Global Action Is ‘Very Far’ From What’s Needed to Avert Climate Chaos

Fri, 02/26/2021 - 05:00
New climate pledges submitted to the United Nations would reduce greenhouse gas emissions by less than 1 percent, the world body announced.

Hunting for a Giant Black Hole, Astronomers Found a Nest of Darkness

Fri, 02/26/2021 - 02:00
No Gargantua dwells at the heart of stellar cluster NGC 6397. Instead, a few dozen smaller black holes seem to be swarming around in there, throwing their considerable masses around.

The Coronavirus Is Plotting a Comeback. Here’s Our Chance to Stop It for Good.

Thu, 02/25/2021 - 15:30
Many scientists are expecting another rise in infections. But this time the surge will be blunted by vaccines and, hopefully, widespread caution. By summer, Americans may be looking at a return to normal life.

The Outsized Influence of Teen T. Rex and Other Young Dinosaurs

Thu, 02/25/2021 - 11:00
A deep dive into dinosaur data suggests that teenage T. rexes and other juvenile carnivores shaped their ecosystems.

Children Are Consuming Hand Sanitizer. Here’s How to Keep Them Safe.

Thu, 02/25/2021 - 09:01
During the pandemic, there was a dramatic increase in exposures to hand sanitizer reported among kids under 6, U.S. poison center data shows.

Manatees May Carry Half a Million Microscopic Hitchhikers

Thu, 02/25/2021 - 08:00
Unexpected species of nematodes, some of them new to science, were found living on the skin of the marine mammals.