Up Next
Back to Show
Watch Preview
NOVA
The Planets: Mars
Season 46
Episode 13
Mars was once a blue water-world studded with active volcanoes. But when its magnetic field and protective atmosphere faded, it became the frozen desert planet we know today. With so many necessary elements in place, did life ever form on Mars?
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
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.
53:29
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
53:31
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
Unlock with PBS Passport
53:30
A family turns to science in their struggle to rediscover a history obscured by slavery.
53:54
Follow the quest to create a lifesaving malaria vaccine.
53:20
The inside story of China’s meteoric rise to the forefront of global innovation.
Unlock with PBS Passport
53:15
How did Earth give rise to humans? See what made our species' existence possible.
Unlock with PBS Passport
53:45
How did life bounce back after a cataclysmic extinction wiped out some 90% of all species?
Unlock with PBS Passport
53:47
See how life made the leap to land, turning a barren landscape into a lush, green world.
Unlock with PBS Passport
53:46
How did life survive on a planet covered in ice from pole to pole?