Awesome documentaries

The Day the Earth Nearly Died (about the the Permian mass extinction):



(posted by Julchen68 on YouTube)



The Mystery of the Jurassic (about the reasons why the mid-Jurassic was the highpoint of dinosaur diversity):



(posted by Julchen68 on YouTube)


What really killed the dinosaurs? (about the controversy over the exact causes of the extinction of the dinosaurs)



(posted by Julchen68 on YouTube)


Tutankhamum's Fireball (about the green glass that permeates the Egyptian desert and how it originated):



(posted by Julchen68 on YouTube)


Why aren't the aliens everywhere? (about the Fermi paradox):



(posted by MoOnL1ght123 on YouTube)


Spacemen Investigated (about the sorts of challenges that will face long-term space travellers and how solutions to these challenges are being devised)



(posted by Julchen68 on YouTube)


Space Mysteries - Alien Safari (about the prospects of extraterrestrial life in our own solar system and the most likely candidate planets and moons)



(posted by Julchen68 on YouTube)