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Kurzgesagt – In a Nutshell

@kurzgesagt · 25.7M subscribers

Kurzgesagt – In a Nutshell’s most viewed videos of 2015

Lifetime totals, not views in this range.

Snapshot from 19 Oct 2026.

  1. Rank 1:
    The Fermi Paradox — Where Are All The Aliens? (1/2)

    The Fermi Paradox — Where Are All The Aliens? (1/2)

    35.5M views6 May 20156:21(opens in a new tab)

  2. Rank 2:
    Black Holes Explained – From Birth to Death

    Black Holes Explained – From Birth to Death

    29.5M views15 Dec 20155:56(opens in a new tab)

  3. Rank 3:
    Quantum Computers Explained – Limits of Human Technology

    Quantum Computers Explained – Limits of Human Technology

    19.4M views8 Dec 20157:17(opens in a new tab)

  4. Rank 4:
    The Fermi Paradox II — Solutions and Ideas – Where Are All The Aliens?

    The Fermi Paradox II — Solutions and Ideas – Where Are All The Aliens?

    17.2M views4 Jun 20156:17(opens in a new tab)

  5. Rank 5:
    What if there was a black hole in your pocket?

    What if there was a black hole in your pocket?

    16.1M views16 Jul 20153:38(opens in a new tab)

  6. Rank 6:
    The Death Of Bees Explained – Parasites, Poison and Humans

    The Death Of Bees Explained – Parasites, Poison and Humans

    15.4M views9 Jul 20156:12(opens in a new tab)

  7. Rank 7:
    What is Dark Matter and Dark Energy?

    What is Dark Matter and Dark Energy?

    12.4M views6 Aug 20156:21(opens in a new tab)

  8. Rank 8:
    Banking Explained – Money and Credit

    Banking Explained – Money and Credit

    10.9M views12 Mar 20156:10(opens in a new tab)

  9. Rank 9:
    How Small Is An Atom? Spoiler: Very Small.

    How Small Is An Atom? Spoiler: Very Small.

    10.1M views20 Jan 20154:58(opens in a new tab)

  10. Rank 10:
    Measles Explained — Vaccinate or Not?

    Measles Explained — Vaccinate or Not?

    10.1M views24 Feb 20155:34(opens in a new tab)

  11. Rank 11:
    How Facebook is Stealing Billions of Views

    How Facebook is Stealing Billions of Views

    10M views10 Nov 20155:02(opens in a new tab)

  12. Rank 12:
    What Is Light?

    What Is Light?

    10M views15 Oct 20154:39(opens in a new tab)

  13. Rank 13:
    Nuclear Energy Explained: How does it work? 1/3

    Nuclear Energy Explained: How does it work? 1/3

    8.2M views26 Mar 20154:44(opens in a new tab)

  14. Rank 14:
    What Is Something?

    What Is Something?

    7.9M views23 Dec 20155:34(opens in a new tab)

  15. Rank 15:
    3 Reasons Why Nuclear Energy Is Terrible! 2/3

    3 Reasons Why Nuclear Energy Is Terrible! 2/3

    5M views1 Apr 20153:36(opens in a new tab)

  16. Rank 16:
    3 Reasons Why Nuclear Energy Is Awesome! 3/3

    3 Reasons Why Nuclear Energy Is Awesome! 3/3

    4.8M views1 Apr 20153:47(opens in a new tab)