![Mountains in McCarthy Alaska. This... [Photo of the day - 21 JANUARY 2022]](https://assets-natgeotv.fnghub.com/POD/12646.ThumbL.jpg)
![Florescent blue water flowing... [Photo of the day - 20 JANUARY 2022]](https://assets-natgeotv.fnghub.com/POD/12644.ThumbL.jpg)
![Whitehorse, Yukon Territory, Canada.... [Photo of the day - 19 JANUARY 2022]](https://assets-natgeotv.fnghub.com/POD/12642.ThumbL.jpg)
Known Universe
| webisodedescription| hidedescriptionScientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
morevideosfrom Known Universe
10
- sortbydate
Most Violent...
04:42
Scientists working to defend us from a...
Scientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
programme Known Universe
genre Science
genre Science
Searching for...
03:13
Exploring our own planet for clues as to what...
Exploring our own planet for clues as to what extraterrestrial life might look like, what if we do make contact?
programme Known Universe
genre Science
genre Science
Why is Earth...
03:01
Exploring our own planet for clues as to what...
Exploring our own planet for clues as to what extraterrestrial life might look like, what if we do make contact?
programme Known Universe
genre Science
genre Science
Does another...
03:53
Exploring our own planet for clues as to what...
Exploring our own planet for clues as to what extraterrestrial life might look like, what if we do make contact?
programme Known Universe
genre Science
genre Science
Bizzare...
03:00
Exploring our own planet for clues as to what...
Exploring our own planet for clues as to what extraterrestrial life might look like, what if we do make contact?
programme Known Universe
genre Science
genre Science
What Do Aliens...
03:01
Exploring our own planet for clues as to what...
Exploring our own planet for clues as to what extraterrestrial life might look like, what if we do make contact?
programme Known Universe
genre Science
genre Science
Giant Space...
02:59
Scientists working to defend us from a...
Scientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
programme Known Universe
genre Science
genre Science
9 km long...
04:21
Scientists working to defend us from a...
Scientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
programme Known Universe
genre Science
genre Science
Fighting Asteroids
03:01
Explore deep space collisions on a colossal...
Explore deep space collisions on a colossal scale and find out if scientists can protect the planet from asteroids.
programme Known Universe
genre Science
genre Science
Can Galaxies...
03:03
Scientists explore deep space collisions on a...
Scientists explore deep space collisions on a colossal scale.
programme Known Universe
genre Science
genre Science
relatedvideos
Gar Fish Catch...
01:44
Get up close and personal with the needle...
Get up close and personal with the needle toothed gar alligator.
programme Monster Fish
genre Nature
programme Monster Fish
genre Nature
Most...
02:56
This 19th century marvel is struggling to keep...
This 19th century marvel is struggling to keep up with 20th century demand.
programme Mega Structures Panama Canal
genre Machines
programme Mega Structures Panama Canal
genre Machines
Inside...
03:00
Take a trip behind the scenes of your daily...
Take a trip behind the scenes of your daily commute and meet the people working 24/7 to ensure you get there on time.
programme World's Toughest Fixes
genre Machines
programme World's Toughest Fixes
genre Machines
Deadly...
02:43
Does she want to greet him or eat him? Around...
programme Wild Sex
genre Nature
Baby arctic...
02:51
The Russian Arctic, extreme habitat and haven...
The Russian Arctic, extreme habitat and haven for polar bears, lemmings, arctic foxes and walruses.
programme Wild Russia
genre Nature
programme Wild Russia
genre Nature
