Microbes colonize our skin, guts, and bodies—but we wouldn’t be ourselves without them.

Animal and human forms of communication may be much closer than we previously thought.

April Fool's! We weigh in on the serious science behind... whoopee cushions.

Stephen Hawking had a way of bringing the most cosmic ideas down to Earth.

When snowy owls land at Logan Airport, Norman Smith gives the birds a one-way flight out.

A multiverse could explain why our universe is fine-tuned for life.

A signal from the dawn of the universe may hold surprising clues about dark matter.

The one thing Katherine Hayhoe wishes we did about climate change.

Ecologist Stephen Pacala says a climate change conspiracy is impossible.

Disastrous hurricanes. Widespread droughts and wildfires. Withering heat. Extreme rainfall. It is hard not to conclude that something’s up with the weather, and many scientists agree. It’s the result of the weather machine itself—our climate—changing, becoming hotter and more erratic. In this 2-hour documentary, NOVA will cut through the confusion around climate change.

Disastrous hurricanes. Widespread droughts and wildfires. Withering heat. Extreme rainfall. It is hard not to conclude that something’s up with the weather, and many scientists agree. It’s the result of the weather machine itself—our climate—changing, becoming hotter and more erratic. In this 2-hour documentary, NOVA will cut through the confusion around climate change.

Faith and climate science are not at odds, says evangelical meteorologist Paul Douglas.

In honor of Black History Month, we celebrate these black scientists.

Scientists have a new tool to edit genes in human cells to repair mutations. What is it?

To make their delivery schedule, how quickly must Santa and his reindeer travel the world?

To physicists, curling presents the most puzzling conundrum in the Olympic Games.

Sometimes the biggest puzzle in physics seems like the worst relationship in the universe.

"What The Physics?!" host, Greg Kestin, answers questions from you, our viewers.

From necking giraffes to monogamous parasites, creatures couple up in unexpected ways.