Skip to main content
Asteroid: Doomsday or Payday?

Up Next

Why Sharks Attack

Why Sharks Attack

Season 41 Episode 11
53:40
Vaccines—Calling the Shots

Vaccines—Calling the Shots

Season 41 Episode 14
53:10
Ben Franklin's Balloons

Ben Franklin's Balloons

Season 41 Episode 17
52:52
Emperor's Ghost Army

Emperor's Ghost Army

Season 41 Episode 20
53:36
First Man on the Moon

First Man on the Moon

Season 41 Episode 22
53:10
Sunken Ship Rescue

Sunken Ship Rescue

Season 42 Episode 2
53:37
Secrets of Noah's Ark

Secrets of Noah's Ark

Season 42 Episode 12
53:09
Arctic Ghost Ship

Arctic Ghost Ship

Season 42 Episode 16
53:42
Making North America: Origins

Making North America: Origins

Season 42 Episode 20
54:06
Making North America: Life

Making North America: Life

Season 42 Episode 21
54:06
Making North America: Human

Making North America: Human

Season 42 Episode 22
53:37
Inside Einstein's Mind

Inside Einstein's Mind

Season 42 Episode 23
53:07
Back to Show
NOVA

Asteroid: Doomsday or Payday?

Season 40 Episode 24

The asteroid that exploded over Siberia—injuring more than 1,000 and damaging buildings in six cities—was a shocking reminder that Earth is a target in a cosmic shooting range. From the width of a football field to the size of a small city, these space rocks have the potential to be killers. In a collision with Earth, they could set off deadly blast waves, raging fires and colossal tidal waves.

Airdates
Monday Apr 8, 6:00 PM PDT on PBS SoCal Encore
Tuesday Apr 9, 6:00 AM PDT on PBS SoCal Encore
Tuesday Apr 9, 12:00 PM PDT on PBS SoCal Encore
Saturday Apr 13, 5:00 PM PDT on PBS SoCal Encore
Support Provided By
Season
A.I. Revolution
53:30
Explore the promise and perils of new A.I. technologies.
NOVA Season 51
Unlock with PBS Passport
53:10
Follow the quest to recover DNA millions of years old for the very first time.
Building the Eiffel Tower
Unlock with PBS Passport
53:29
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
Easter Island Origins
Unlock with PBS Passport
53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
When Whales Could Walk
Unlock with PBS Passport
53:31
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
Lee and Liza's Family Tree
Unlock with PBS Passport
53:31
A family turns to science in their struggle to rediscover a history obscured by slavery.
The Battle to Beat Malaria
53:54
Follow the quest to create a lifesaving malaria vaccine.
Inside China's Tech Boom
53:19
The inside story of China’s meteoric rise to the forefront of global innovation.
Ancient Earth: Humans
Unlock with PBS Passport
53:15
How did Earth give rise to humans? See what made our species' existence possible.
Ancient Earth: Inferno
Unlock with PBS Passport
53:45
How did life bounce back after a cataclysmic extinction wiped out some 90% of all species?
Ancient Earth: Life Rising
Unlock with PBS Passport
53:47
See how life made the leap to land, turning a barren landscape into a lush, green world.
Ancient Earth: Frozen
Unlock with PBS Passport
53:46
How did life survive on a planet covered in ice from pole to pole?
Active loading indicator