Is ‘Natural Immunity’ From Covid Better Than a Vaccine?

And if you’ve already had Covid-19, do you still need a vaccine? Experts tackle questions about vaccine immunity.

5h

A Race Against Time to Rescue a Reef From Climate Change

In an unusual experiment, a coral reef in Mexico is now insured against hurricanes. A team of locals known as “the Brigade” rushed to repair the devastated corals, piece by piece.

8h

The Swiss Cheese Model of Pandemic Defense

It’s not edible, but it can save lives. The virologist Ian Mackay explains how.

8h

Japan's Hayabusa2 Asteroid Journey Ends With a Hunt in Australia's Outback

The Hayabusa2 mission cements Japan’s role in exploring the solar system, but finding its asteroid cargo presents one last challenge.

13h

As Virus Spreads, C.D.C. Draws Up an Urgent Battle Plan

The multipronged advice, for individuals and state and local officials, may augur a national strategy in the months to come, experts said.

19h

Baricitinib, a Covid-19 Drug from Eli Lilly, Is Expensive And Doesn't Do Much

Baricitinib, an arthritis drug made by Eli Lilly, may reduce recovery time by a day, but costs about $1,500 and comes with side effects.

1d

Overlooked No More: Barbara Waxman Fiduccia, Reproductive Rights Advocate

A sexual health educator and counselor in Los Angeles, she challenged a dominant culture that viewed people with disabilities as asexual beings.

1d

Could a Blood Test Show if a Covid-19 Vaccine Works?

A new monkey study offers a ray of hope for speeding up clinical trials of Covid-19 vaccines.

1d

This Unusual Bird Superpower Goes Back to the Dinosaur Extinction

Kiwis, ibises and sandpipers share this sensory power with birds that lived millions of years ago.

1d

Could a Blood Test Show if a Covid-19 Vaccine Works?

A new monkey study offers a ray of hope for speeding up clinical trials of Covid-19 vaccines.

1d