Episodes
Trace human development from embryo to newborn through stunning microimagery.
Combining the laws of the universe in one theory that explains it all is the Holy Grail
Do miniscule vibrating strands of energy hold the key to a unified theory of physics?
Will experimental particle physics confirm the wild predictions of string theory?
The story of how African-American Percy Julian defied the odds to become a famous chemist.
We are on the verge of answering one of the greatest questions in history: Are we alone?
It defines our lives, but what is time really? Have a look into its true nature.
Take a wild ride into the quantum realm, where even the impossible seems possible.
Is our universe unique, or could it be just one in an endless "multiverse"?
Australia’s landscape holds clues to Earth's early history and the beginning of life.
Fossils reveal how life’s explosion in the ocean was recreated on dry land.
Extras
Can we really bring extinct species back? Evolutionary biologist Beth Shapiro says yes.
See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
Dive into how Earth’s weirdest microbes could help us spot extraterrestrial life.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
What is speech, really? Neuroscientist Erich Jarvis explores the science behind how we speak.
Your brain does all kinds of strange things. Neuroscientist Heather Berlin explains how it works.
NASA’s Perseverance rover may have found the clearest signs of ancient life on Mars yet.
Has science been missing a fundamental law of nature for centuries?