Episodes
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The Sun: Crash Course Astronomy #10
S1 E10 - 11m 44s
Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our planet.
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Introduction to the Solar System: Crash Course Astronomy #9
S1 E9 - 9m 57s
In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.
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Tides: Crash Course Astronomy #8
S1 E8 - 9m 46s
Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions.
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The Gravity of the Situation: Crash Course Astronomy #7
S1 E7 - 9m 41s
Phil looks at how gravity plays out across the universe.
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Telescopes: Crash Course Astronomy #6
S1 E6 - 11m 59s
Today Phil explains how telescopes work and offers up some astronomical shopping advice.
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Eclipses: Crash Course Astronomy #5
S1 E5 - 10m 10s
The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you.
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Moon Phases: Crash Course Astronomy #4
S1 E4 - 9m 45s
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.
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Cycles in the Sky: Crash Course Astronomy #3
S1 E3 - 9m 28s
This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe.
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Naked Eye Observations: Crash Course Astronomy #2
S1 E2 - 11m 16s
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
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Introduction to Astronomy: Crash Course Astronomy #1
S1 E1 - 12m 11s
Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"
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