Results come from Exumo's own index. Data from YouTube; Exumo is not affiliated with YouTube.

1. 9:47

   Kronos: Devourer Of Worlds

   PBS Space Time · Jan 31, 2018 · 639.7K views

2. 14:15

   The End of the Habitable Zone

   PBS Space Time · Jan 24, 2018 · 1M views

3. 14:56

   Horizon Radiation

   PBS Space Time · Jan 17, 2018 · 420.8K views

4. 13:50

   What Do Stars Sound Like?

   PBS Space Time · Jan 10, 2018 · 359.9K views

5. 1:36

   Space Time VR

   PBS Space Time · Dec 22, 2017 · 109.4K views

6. 13:09

   Extinction by Gamma-Ray Burst

   PBS Space Time · Dec 20, 2017 · 737.8K views

7. 11:36

   The Origin of 'Oumuamua, Our First Interstellar Visitor | Space Time

   PBS Space Time · Dec 13, 2017 · 1.5M views

8. 14:49

   Understanding the Uncertainty Principle with Quantum Fourier Series | Space Time

   PBS Space Time · Dec 6, 2017 · 903.2K views

9. 10:33

   Citizen Science + Zero-Point Challenge Answer | Space Time

   PBS Space Time · Nov 29, 2017 · 155.2K views

10. 16:48

    Suicide Space Robots

    PBS Space Time · Nov 22, 2017 · 286.2K views

11. 10:09

    Zero-Point Energy Demystified

    PBS Space Time · Nov 8, 2017 · 1.4M views

12. 11:36

    The Vacuum Catastrophe

    PBS Space Time · Nov 3, 2017 · 1.3M views

13. 13:23

    The Missing Mass Mystery

    PBS Space Time · Oct 25, 2017 · 883.1K views

14. 16:07

    The Nature of Nothing | Space Time

    PBS Space Time · Oct 19, 2017 · 2.3M views

15. 10:41

    Absolute Cold | Space Time

    PBS Space Time · Oct 11, 2017 · 1.8M views

16. 13:39

    When Quasars Collide STJC

    PBS Space Time · Oct 5, 2017 · 1.1M views

17. 14:52

    Are the Fundamental Constants Changing?

    PBS Space Time · Sep 28, 2017 · 827.6K views

18. 13:40

    The Future of Space Telescopes

    PBS Space Time · Sep 20, 2017 · 721.4K views

19. 15:51

    Neutron Stars Collide in New LIGO Signal?

    PBS Space Time · Sep 13, 2017 · 665.7K views

20. 13:27

    White Holes | Space Time

    PBS Space Time · Aug 30, 2017 · 3.2M views