#NRA: Last Week Tonight with #JohnOliver (#HBO)

6 of The Weirdest Places on Earth | Compilation - #SciShow #Curiosity

This incredible animation shows how deep humans have dug - #earth #underground

The Most Launched Rocket - A History Of The R-7 - #Sputnik #Rocket #Nasa #Russia #Exploration

#Sputnik - 60 years on from the Start of the Space Race - #Space #SpaceRace #Exploration

Doomsday Machines - #NuclearBomb #Fission #Fusion #Fallout

How We Used the #Moon to Send #Radio Messages - #USA #Russia #ColdWar #OperationMoonBounce

Most AMAZING Optical Illusions - #OpticalIllusion #NeuroScience