Great Filter
The End Of The World with Josh Clark
00:00
Why We Have a Moon
The Moon's mass exerts gravity over Earth and keeps it stable, not wobbling or tilting more than it does. Because the Moon is so close to Earth, it's tidally locked and orbit around us. It doesn't spin on its axis, which is why we always see the same side of the Moon as it orbits us. This is an important feature, because it also creates the tides here on Earth. And it was in these tidal pools of young Earth's oceans where some people think life began.
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