![Mariana van Zeller interviews a... [Photo of the day - 21 AUGUST 2025]](https://assets-natgeotv.techops.disn.io/POD/16871.ThumbL.jpg)
![Two females of the elephant seal... [Photo of the day - 20 AUGUST 2025]](https://assets-natgeotv.techops.disn.io/POD/16869.ThumbL.jpg)
![A CBP officer is holding a possible... [Photo of the day - 19 AUGUST 2025]](https://assets-natgeotv.techops.disn.io/POD/16867.ThumbL.jpg)
Known Universe
| webisodedescription| hidedescriptionScientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
Most Violent Explosions in the Universe
| videodescription| hidevideodescriptionScientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.
duration: (04:42)Genre: Sciencemorevideosfrom 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
How strong is...
04:48
Brady heads into the bush and measures each...
Brady heads into the bush and measures each animals' power, and witnesses firsthand the differences in their methods of attack.
programme Dangerous Encounters
genre Nature
programme Dangerous Encounters
genre Nature
US helicopter...
03:03
In 2002 during Operation Anaconda a group of...
In 2002 during Operation Anaconda a group of elite navy SEALs attempt to insert on a mountain peak in Afghanistan.
programme Situation Critical
genre Science
programme Situation Critical
genre Science
Testing one of...
02:59
Building the highest coaster in the world is a...
Building the highest coaster in the world is a tall order but the real catch is breaking the speed record.
programme Mega Structures Roller Coaster
genre Machines
programme Mega Structures Roller Coaster
genre Machines
Incense Bath...
08:22
Every day at noon Cathedral of Santiago de...
Every day at noon Cathedral of Santiago de Compostela holds a mass to welcome Pilgrims fresh off the trail.
programme Travelling Without Footprints
genre Travel
programme Travelling Without Footprints
genre Travel
How Strong is...
02:39
A daring National Geographic scientist gets...
A daring National Geographic scientist gets pulled out of his boat as he tries to measure the biteforce of a giant crocodile.
programme Amazing Moments
genre Nature
programme Amazing Moments
genre Nature
