How One Family Makes a Living Operating an Underground Ambulance Service in Mexico City

The Sixth Victim: A Murder in Small-Town Japan

The Radical Mister Rogers

Astronomers Have a New Way to Spot Earth-Like Worlds With Atmospheres

The tricky ethics of Google’s Project Nightingale, an effort to learn from millions of health records

Video: Surprises from Asteroid Bennu [2:19]

On the Eve of WWII: Three Days Before the Bombing of Paris

Why the paper on the CRISPR babies stayed secret for so long

How life survived Snowball Earth, the planet’s most severe ice age

Hoag’s Object Is a Galaxy Within a Galaxy Within a Galaxy (and Nobody Knows Why)

Alexander the Great’s warrior mom wielded unprecedented power

Britain’s Secret War With Russia

Dark energy might not exist after all

With ultracold chemistry, researchers get a first look at exactly what happens during a chemical reaction

This is why children’s TV is so weird – and so mesmerising

Black Hole Singularities Are as Inescapable as Expected

The Accidental Experiment That Changed Men’s Lives

‘It appeared that we had time’: How the FAA missed a chance to save Jennifer Riordan

Why is an ocean current critical to world weather losing steam? Scientists search the Arctic for answers.

Video: 1958 FACOM 128B Japanese Relay Computer, still working! [24:04]

Video: Relative rotations of the planets, in 2D! [0:20]

A narwhal tusk was used against the London Bridge attacker – but what is it?

Why the World Needs Bloodsucking Creatures

Cracks in the Greenland ice sheet are producing massive waterfalls, raising scientists’ concerns for sea level rise

War and pissoirs: how the urinals of Paris helped beat the Nazis

Cats communicate with the help of bacteria living in their butts

We’ll Call her Story a Real-Life “Handmaid’s Tale”

He Confessed to Murdering 600 Women. It Was All a Lie.

A Newly Digitized Menu Collection Shows Off America’s Lost Railroad Cuisine

On (and In) The Sewers (and Sewage) That Transformed Paris

How suspicions of spying threaten cross-border science

MIT researchers are building an instrument to study genetics on Mars

Facial deformity in royal dynasty was linked to inbreeding, scientists confirm

U.S. Special Forces Develop Bullets That Can Work Underwater

Student solves a 100-year-old physics enigma

There’s Now an Operational Radio Telescope on the Far Side of the Moon

11 years ago today an unforgettable fellow passed away

One man’s 10-year experiment to record every moment

A murder, a trial that lasted less than a day, and the lives they entangled for the next three decades

A cutting-edge brain surgery for tremor, without the cutting

Cancer Seems to Have Trouble Spreading in Microgravity

Clear backpacks, monitored emails: life for US students under constant surveillance

The road to vaping

He Was A Horse That Never Won A Race. So Why Would Someone Steal Him?

World’s Oldest Surviving Chess Piece Unearthed in Jordan

In a Wisconsin village, the doctor makes house calls – and sees the rarest diseases on Earth

Top Dark Matter Candidate Loses Ground to Tiniest Competitor

Meat-eating dinosaur replaced its teeth like a shark

Scientists used loudspeakers to make dead coral reefs sound healthy. Fish flocked to them.

China launches compulsory face scans for new phone users

‘People are caught up in magical thinking’: was the oldest woman in the world a fraud?

A Better Social Media World Is Waiting for Us

Video: The relative sizes of astronomical objects [5:07]

Leonardo da Vinci’s Unexamined Life as a Painter

The bonkers, bristly story of how big toothbrush took over the world

Scientists Recreated Volcanic Lightning by Blasting Ash Out of a Cannon

Streamlined design: speed becomes style

How unique Michigan schoolhouse with 6 students has survived 113 years

Longevity Linked to Proteins That Calm Overexcited Neurons

Gallery: National Geographic’s 100 best photos of 2019