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Most People With Coronavirus Won’t Spread It. Why Do a Few Infect Many?

Most People With Coronavirus Won’t Spread It. Why Do a Few Infect Many?

How Do Flying Snakes Glide Through the Air? ‘It’s Hard to Believe’

A Worm’s Hidden Map for Growing New Eyes

Dr. William Dement, Leader in Sleep Disorder Research, Dies at 91

Kenneth Lewes, Who Challenged Views of Homosexuality, Dies at 76

Nature Is an Obstacle Course. This Is How Bees Navigate It.

NASA Names Headquarters After Its First Black Female Engineer, Mary Jackson

The Great Wonders Beyond the Great Reef

Dennis Nagle, Free Spirit With an Engineer’s Mind, Dies at 78.

Two Black Holes Colliding Not Enough? Make It Three

Dolphins Have an Eating Trick. How They Learn It Is More Surprising.

When Wombats Weighed Over 300 Pounds

Dog Breeding in the Neolithic Age

NASA Names Headquarters After Its First Black Female Engineer, Mary Jackson

NASA Names Headquarters After Its First Black Female Engineer, Mary Jackson

Robert Laughlin, Preserver of a Mayan Language, Dies at 85

A Black Hole’s Lunch Provides a Treat for Astronomers

They Wanted You to Bet on Sharks. The Odds Were Not in Their Favor.

Mars Is About to Have Its ‘Wright Brothers Moment’

Ancient Rome Was Teetering. Then a Volcano Erupted 6,000 Miles Away.

Massive Saharan Dust Cloud to Move Across Southeast U.S. This Week

Small Worlds With Lava Oceans Might Have Given Us Meteorites

Happy Father’s Day to All the Fish Dads Underwater

Hummingbirds Navigate an Ultraviolet World We Never See

People probably caught coronavirus from minks. That’s a wake-up call to study infections in animals, researchers say.

They Want to Sell Balloon Rides 19 Miles Up. Haven’t We Heard This Before?

Yellowstone’s Supervolcano Is a Hot Spot, but It May Be Calming Down

Blowing Bubbles to Pollinate Flowers

Tracks Hint at a Crocodile Ancestor That Walked on 2 Legs

Life Hatched From Soft Eggs, Some a Foot Long, in Dinosaur Era

Seeking Dark Matter, They Detected Another Mystery

Coronavirus Outbreaks at Border Put Haitian Migrants at Risk

The Return of the Platypuses

Who’s a Bot? Who’s Not?

China Reports Progress in Ultra-Secure Satellite Transmission

Oumuamua: Neither Comet nor Asteroid, but a Cosmic Iceberg

Oleh Hornykiewicz, Who Discovered Parkinson’s Treatment, Dies at 93

Mutation Allows Coronavirus to Infect More Cells, Study Finds. Scientists Urge Caution.

How an American Robot Will Get to the Moon

Migration Numbers Plunge for the Red Knot, a Threatened Shore Bird

After Outbreak on Carrier Roosevelt, Many Have Antibodies

Second Woman Quickly Follows First to Ocean’s Nadir

Familiar Culprit May Have Caused Mysterious Mass Extinction

Coronavirus Vaccine Tracker

Did You Recently Give Birth? Please Share Your Story

After Outbreak on Carrier Roosevelt, Many Have Antibodies

Can You Boil an Egg Too Long?

First American Woman to Walk in Space Reaches Deepest Spot in the Ocean

F.D.A. Says Some Masks Made in China Shouldn’t Be Reused