Back to Show
NOVA
Do Aliens Exist? This Famous Equation Offers a Clue
It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact? A famous mathematical equation, known as the Drake Equation, helps scientists estimate the odds of finding intelligent alien civilizations, but new discoveries and unknown factors could change everything.
Support Provided By
Season

53:40
Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.

53:40
Dive into the universe at the tiniest – and weirdest – of scales.

Unlock with PBS Passport
53:34
Meet the surprising, oddball worlds moving around our solar system.

Unlock with PBS Passport
53:34
Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.

Unlock with PBS Passport
53:34
Discover the powerful volcanic eruptions that have shaped worlds across our solar system.

Unlock with PBS Passport
53:34
What are the weirdest worlds in our solar system, and how did they come to be?

Unlock with PBS Passport
53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.

53:38
Explore big discoveries that have revolutionized our understanding of the universe.

53:40
Find out who’s using your data and what you can do about it.

53:34
Explore the spectacular cosmic phenomenon of a total solar eclipse.

53:30
Explore the promise and perils of new A.I. technologies.

53:10
Follow the quest to recover DNA millions of years old for the very first time.