What If | What If Aliens are Living Inside Earth? #Shorts @WhatIfScienceShow | Uploaded November 2023 | Updated October 2024, 10 hours ago.
Watch the full episode here: youtu.be/HeR2Ghwzn8k

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also could have brought alien life to our planet. What evidence of this planet still exists on Earth today? Could there be life deep inside the Earth’s surface? And could that life be an advanced civilization of humanoid aliens? Would it be possible for subterranean cities to exist within Earth?

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