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
A team of experts put an 18th-century musket to the test — revealing how deadly it really was.
Two students created glasses that can identify people on the street, without them knowing.
Could restoring lost forests help slow climate change?
To better study the UFO phenomenon, science needs more eyes on the skies.
A nearly 3,000-year-old canopic jar is discovered in an Egyptian tomb.
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
Space elevators? Nuclear rockets? The future of space travel could look radically different.
The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations.