How do Phases of the Moon Work? What Causes Them?

Published 2023-01-30
We will discuss what causes the phases of the moon. The moon goes through a 27 day orbit and appears to us as a crescent, full moon, new moon, and other phases in between. what causes this? How does this pattern occur? We will examine how the sun, earth, and moon change positions to cause the different phases of the moon. We will also examine the phenomena of earthshine and eclipses.

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All Comments (21)
  • @WayneBraack
    I am 62 years old and I always thought it was Earth shadow. And yet somehow it never seemed right to me that it was. And so consequently I was always just really confused. Now I understand this topic and I truly appreciate your efforts in putting this out there.
  • @schonique
    I could watch this tutorial forever! Astronomy πŸ”­ is my favorite subject!
  • @valkoshka
    This is THE BEST Moon Phases video out of the thousands!! It truly helped me visualize, understand and remember the phases -- and to get 100% on my Astronomy quiz :) I would so much appreciate an Astronomy 101 package of videos, for each unit of my course -- because my instructor just is not providing the material or support students need to really process the material. The teacher in this video is just awesome. He really understands how to present concepts clearly, in context, with applications, and multiple perspectives and approaches to seeing problems. Great teaching, and enjoyable learning experience. I would gladly pay for an Astronomy package, so that I can enjoy and succeed in my course. I will post the unit topics and cross my fingers :) We are using the textbook Universe 11th edition by Geller, Robert M. It looks like we'll be covering mostly chapters 1 through 16 or so in the course. Huge thanks!
  • @tandavaar1598
    The biggest mistake you have done is not being our science πŸ”­ teacher when we were in school πŸ«πŸ˜‚ Really appreciate YOUR take ... perfectly palatable to even a kid.πŸ’―πŸŽ―
  • Actually I have studied astrophysics over and over again but I couldn't be satisfied, now am even over satisfied . Thanks God bless you
  • @irrefudiate
    The second Moon-phase chart is better because it has the orbit of the Moon in the same general plane as that of Earth. The other chart had the Moon's orbit perpendicular, which made it harder to visualize. The important take-away is Earth has no part in the light or dark of the Moon except on the rare occasion of a lunar eclipse.
  • @EraSofia-mt7pr
    I have a really big test soon and I was soooo worried that I would fail .You just saved me !Thanks 😊
  • @charbam9506
    Really well explained; a thorough, enlightening and quality video - thank you!
  • @adamsilva5321
    The best explanation I've seen so far. Congrats for showing the different relative sizes and distances and how they change the perspective of how the moon is perceived.
  • This is the best video I have ever watched of space science .I could be my science physician please coz ur explanation rocks βœŒπŸ’―πŸ’₯
  • @marnew1000
    Thanks again, brilliantly explained, the distances are totally mind blowing. Great subject
  • @bucs2021
    Excellent explanation; your methods are unique, and so professional. It is a pleasure.
  • Superb job Jason. Excellent content and presentation as usual. Your enthusiasm for the subject is infectious.
  • There was a nobody lands on it phase, then a people land on it phase, but since then it's been a lot like the first phase again.
  • @JamesEscobar
    Wow this channel is extraordinary, and invaluable! Thank you for all that you do here!
  • 😊 So the shadow of the moon moves from rught to left whether its waxing or waning ?? Is this correct?? Thank you for ur video very informative and detailed. Have a great day!😊