
Back to Show
Watch Preview
NOVA
NOVA Wonders What's the Universe Made Of?
Season 45
Episode 106
The universe is hiding something. In fact, it is hiding a lot. Everything we experience on Earth, the stars and galaxies we see in the cosmos—all the “normal” matter and energy that we understand—make up only 5% of the known universe. Find out how scientists are discovering new secrets about the history of the universe, and why they’re predicting a shocking future.
Support Provided By

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?

Unlock with PBS Passport
53:47
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.

53:31
Dive into the subconscious to see what’s really driving the decisions you make.

53:30
Neuroscientists discover the tricks and shortcuts the brain takes to help us survive.

53:19
Investigate one of the most powerful volcanic eruptions in recorded history.

Unlock with PBS Passport
53:31
Follow scientists determined to save the critically endangered right whale.

53:31
Here’s how the U.S. could reach net-zero carbon emissions by 2050.

53:31
Americans use ancient wisdom and new technology to fight extreme weather.

53:31
See the latest stunning images and discoveries from the James Webb Space Telescope.

53:21
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.

Unlock with PBS Passport
53:20
Thousands race to build Europe's biggest construction project–London's new railroad.