CO2 could soon reach levels that, it’s widely agreed, will lead to catastrophe.

On the shared life of Tatiana and Krista Hogan:

The girls’ doctors believe it is entirely possible that the sensory input that one girl receives could somehow cross that bridge into the brain of the other. One girl drinks, another girl feels it.

There are just a handful of people using iron lungs in the U.S. And the machines they rely on to live are wearing out.

We now know that most mass extinctions in Earth’s history were caused by the same thing. What we don’t know is when it will happen next.

How animals see.

As America has turned away from searching for extraterrestrial intelligence, China has built the world’s largest radio dish for precisely that purpose.

On the relative plausibility of impossible beings.

The life and death of OR4, the patriarch of Oregon’s reintroduced wolves.

An elite group of forensic scientists, charged with finding hidden human remains, nears retirement age.

A child genius living in poverty, her mother, and the benefactor who became their tormenter.

Inside the empire of Botox.

Cape Coral, Florida, was built on lies. One big storm could wipe it off the map. It’s also the fastest-growing city in the United States.

Retracing the steps of the most devastating wildfire in California history.

The life and times of Nora.

On the new art of interrogation.

T La Rock was one of the pioneers of hip-hop. But after an attack put him in a nursing home, he had to fight to recover his identity, starting with the fact that he’d ever been a rapper at all.

Daniel Kish is entirely sightless. So how can he ride a bike on busy streets? Go hiking for days alone? By using a technique borrowed from bats.

Not long ago the idea of repairing the brain’s wiring to fight addiction would have seemed far-fetched. But advances in neuroscience have upended conventional notions about addiction—what it is, what can trigger it, and why quitting is so tough.

An oral history of Hurricane Harvey.

For decades, “abnormal” embryos were thrown away during the IVF process. Then some pioneering doctors — and patients — decided to use them anyway.

On the fallibility of memory.

The quest to control hurricanes.

A 2016 investigation into why Houston wasn’t ready for the next big hurricane.

“Seeing a partial eclipse bears the same relation to seeing a total eclipse as kissing a man does to marrying him.”

The dark, tangled truths coming to light thanks to subterranean cartography.