For billions of years, life teemed in Earth’s oceans while the land was desolate and inhospitable. See how life made the leap to land, transforming a barren, rocky landscape into the lush, green world we call home.

700 million years ago, Earth was a giant snowball cloaked in ice from pole to pole. How did life manage to hold on through this deadly deep freeze, find creative ways to bounce back, and thrive in the dramatically different world that emerged?

Early Earth was a hellscape of molten lava and barren rock, bombarded by meteors, with no atmosphere at all. How did our familiar blue sky – the thin, life-giving band of gasses protecting our planet – come to be?

Dive into the most dramatic events in Earth’s 4.5-billion-year history, from its birth to the emergence of humanity. How did a hellscape of molten lava transform into a lush, green, watery planet filled with life? With dazzlingly realistic animation based on the latest research, each of these five episodes brings to life long-lost worlds that ultimately led to the one we know today.

A mammal attacked a much larger dinosaur — then a volcano froze them both in time.

Offshore wind has been slow to take off in the US, compared to Europe. So, why now? What will the impacts be?

OceanGate Expeditions’ Titan submersible had taken passengers down to the Titanic wreckage many times before the ill-fated trip that killed all five passengers on board. So, why did it fail?

A region located inside the prefrontal cortex processes our emotions and helps regulate our behavior. What would happen if it were gone?

Neuroscientist and clinical psychologist Heather Berlin visits a sleep center at the Icahn School of Medicine at Mount Sinai to learn what’s going on in the brain when someone sleepwalks.

Certain experiences are so profound that they can impact brain biology from one generation to the next.

Are you in control of your brain, or is your brain controlling you? Dive into the latest research on the subconscious with neuroscientist Heather Berlin to see what’s really driving the decisions you make.

Did your memories ever really happen? Turns out, every time you recall a memory, it gets a little more false. Scientists explain why your memories change over time—and why they’re less real than you think.

Remember the infamous debate about “the dress”? Whether you saw it as blue/black or white/gold, it all comes down to the way your brain perceives color. A vision scientist explains.

Is what you see real? Join neuroscientist Heather Berlin on a quest to understand how your brain shapes your reality, and why you can’t always trust what you perceive. Learn the surprising tricks and shortcuts the brain takes to help us survive.

Whales are massive reservoirs of carbon and they are key to the health of our oceans. But there are fewer whales — and less whale poop — in the ocean today than before industrial whaling took off.

On January 15, 2022, an underwater volcano erupted off the shores of the Pacific islands of Tonga—the most explosive event ever recorded on Earth. The blast triggered a massive tsunami with waves over 60 feet high. Here's how it happened.

The volcano that produced one the most powerful eruptions in history has a twin, and it’s more active than scientists thought.

At 5:15pm on January 15, 2022, satellites recorded the volcano Hunga Tonga-Hunga Ha’apai blast a cloud of ash and rocks into the atmosphere. Within minutes, tsunami waves crashed into the South Pacific nation of Tonga. These are the stories of some of the survivors.

In January 2022, one of the most powerful volcanic eruptions in recorded history rocked the islands of Tonga. Join scientists as they investigate what caused the blast, how it spurred a devastating tsunami, and if another eruption could be imminent.

Endangered right whale populations are declining and not a single adult is known to have died of natural causes in more than a decade.