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Total Solar Eclipse 2026 | Watt & Why

43 lessons · 63 minutes · 7 quizzes

Everything you need to understand the August 12, 2026 total solar eclipse, from safety and totality to Einstein, eclipse seasons, and the lunar eclipse that follows. Clear, fact-checked episodes from Watt & Why.

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Lessons

1. 1
   Where to Watch the August 2, 2027 Eclipse

   0:22 · short

2. 2
   How to See the Harvest Moon & Saturn Tonight

   0:41 · short

3. 3
   The Sun Vanishes for 6 Minutes in 2027

   0:27 · short

4. 4
   6 Minutes of Total Darkness Is Coming

   0:21 · short

5. 5
   How many Earths can fit in the Sun?

   0:26 · short

6. 6
   Best phone camera settings for the Lunar Eclipse

   0:26 · short

7. 7
   Why is the Earth Round? Aristotle's Lunar Proof

   0:26 · short

8. 8
   Solar Eclipse from the Moon vs Earth

   0:26 · short

9. 9
   Why a Full Moon isn't enough for an Eclipse

   0:26 · short

10. 10
    How Wide is Earth's Shadow in Space?

    0:26 · short

11. 11
    Why Lunar Eclipses Are Getting Smaller

    0:26 · short

12. 12
    Why the Blood Moon Turns Copper Red (Full Explanation)

    0:26 · short

13. 13
    How Long Does the August Lunar Eclipse Last?

    0:26 · short

14. 14
    When to see the Blood Moon tonight

    0:26 · short

15. 15
    The Stare Challenge: Stare all you want

    0:26 · short

16. 16
    Blood Moon 2026: Why the Moon Changes Color

    7:39

17. 17
    Don't miss Thursday's Moon: Official times

    0:26 · short

18. 18
    How Red Will the Lunar Eclipse Be?

    0:27 · short

19. 19
    93% Coverage: Thursday’s Lunar Eclipse

    0:26 · short

20. 20
    The science of the Blood Moon explained

    0:26 · short

21. 21
    The science of the Blood Moon explained

    0:26 · short

22. 22
    Why the Moon and Sun Look the Same Size

    7:04

23. 23
    Why your GPS would fail without Einstein

    0:27 · short

24. 24
    Why 1.75 changed science forever

    0:40 · short

25. 25
    Why Eclipses Don't Happen Every Month

    6:52

26. 26
    The Photo That Proved Einstein

    0:26 · short

27. 27
    How a 1919 Solar Eclipse Proved Einstein Right

    0:37 · short

28. 28
    The Science Behind the Disappearing Sun

    0:28 · short

29. 29
    The Day the Sky Turns into Night

    0:33 · short

30. 30
    Don't Miss This: The Sun Disappears Tomorrow

    0:32 · short

31. 31
    2 Days Until Total Darkness

    0:29 · short

32. 32
    72 Hours Left: Is Your City on the Path?

    0:28 · short

33. 33
    The Only Way to See the Sun’s Halo

    0:27 · short

34. 34
    The Shadow is Coming: 5 Days to Go

    0:31 · short

35. 35
    6 Days Left: The Sky is Changing

    0:29 · short

36. 36
    7 Days to Go: Don't Make This Mistake

    0:34 · short

37. 37
    Europe’s 100-Year Event: 8 Days Left

    0:29 · short

38. 38
    The 9-Day Warning: A Cosmic Coincidence

    0:31 · short

39. 39
    The 10-Day Map: Where the Sun Vanishes

    0:28 · short

40. 40
    The Eclipse That Changed Physics Forever

    5:05

41. 41
    August 12: Total Darkness is Coming

    5:59

42. 42
    5 Safe Ways to Watch the 2026 Eclipse

    5:52

43. 43
    Why the Sun Disappears on August 12

    7:03

Test yourself

• How an Eclipse Proved Einstein Right 10 questions
• How to Watch a Solar Eclipse Safely 10 questions
• What Causes a Total Solar Eclipse 10 questions
• What a Total Solar Eclipse Looks Like 10 questions
• Why There Is Not an Eclipse Every Month 10 questions
• Why the Moon Turns Red 10 questions
• Why the Moon and Sun Look the Same Size 10 questions