Retrograde Motion
PLANETS, EARTH, SUN, PHYSICS Sam Atkins PLANETS, EARTH, SUN, PHYSICS Sam Atkins

Retrograde Motion

As you watch the planets drift across the night sky throughout the year, you’ll notice that they periodically seem to stop and reverse direction before righting themselves again. This is really strange! Why does that happen? We’ll walk you through what’s actually going on! It’s simpler and more intuitive than you might think!

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