A team of Nat Geo remote imaging engineers attempt to deploy crittercams on Great White Sharks.
(02:49)The gang hears from a witness firsthand.
(02:54)Are aliens keeping an eye on NASA?
(00:40)What is actually flying over the skies of south Florida?
(02:05)Meet a veteran astronaut who believes that extra-terrestrials are monitoring Earth.
(01:58)Did the team just catch a glimpse of an unknown craft in the night sky?
(02:37)Could a sighting in the Rockies have something to do with gruesome animal mutilations?
(01:04)Is a secret military base in California covering up evidence of UFOs?
(00:49)Is there a link between the military and UFO encounters?
(01:04)Ryder sees a mysterious flash in the night sky and attempts to chase it down over dangerous terrain.
(02:47)An experiment with hidden cameras and a loudspeaker in a typical office gets workers on their feet.
(02:41)A reflection on the proliferation of nuclear weapons.
(02:25)Tim asks the question: Will a bill soaked in alcohol and water burn?
(01:49)In the spring of 2013, several storm chasers were tragically killed by the widest tornado on record.
(02:02)A pogo stick, a careless jumper, and gravity. What could go wrong?
(02:59)What happens when you use the wrong type of balloon?
(03:11)The science behind a stable and unstable hovercraft.
(03:00)The physics behind the static point jump.
(02:57)The proper way to rev your snowmobile during a jump to avoid a crash.
(02:51)The science behind why so many people are unsuccessful at fire breathing.
(03:48)