Featuring the voices of David Attenborough, Craig Childs, Brian Cox, Neil deGrasse Tyson, Michelle Thaller, Lawrence Krauss, Michio Kaku, Mike Rowe, Phil Plait, Janna Levin, Stephen Hawking, Sean Carroll, Alex Filippenko, and Martin Rees.
Voice sample sources:
Attenborough Davos Speech
https://www.youtube.com/watch?v=xuudPum21nE
Craig Childs - Long Now Talk
http://longnow.org/seminars/02013/jul/29/apocalyptic-planet-field-guide-everending-earth
Brian Cox - Wonders of the Universe Episode 1
Neil deGrasse Tyson interview with Bill Moyers
https://vimeo.com/84075447
How the Universe Works - Season 3 Episode 2
Will The Universe Ever End with Lawrence Krauss
https://www.closertotruth.com/series/will-the-universe-ever-end#video-2549
Janna Levin TED Talk
https://www.youtube.com/watch?v=eLz9TvxGoKs
A Brief History of Time (1991)
https://www.youtube.com/watch?v=UAfxKExKjVQ
What Happens in the Far Far Future
https://www.closertotruth.com/series/what-happens-the-far-far-future
Sean Carroll TEDxCaltech
https://www.youtube.com/watch?v=WMaTyg8wR4Y
Alex Filippenko - TEDxSF
https://www.youtube.com/watch?v=-gAtPyEu0G4
To Infinity and Beyond: The Accelerating Universe
https://www.youtube.com/watch?v=pcKdA2-W0X0
Martin Rees interview
http://www.closertotruth.com/series/what-happens-the-far-far-future#video-3625