We have bacteria that are swept up from the surface, and they spend about a week up in the clouds. Most of them are inside cloud droplets. They can be transported over continental scales, and then they drop back down. So you can't have life aloft indefinitely if it's all raining out and getting heated until it's no longer alive. That's a really big istency. And so i came up with the life cycle idea. What's the lifecycle idea? So life is inside the droplets, which can stay aloft for months or even years, depending on the size of the droplet. But as they start raining down slowly, they come to a layer
Venus is the hottest, scariest planet in the solar system, but billions of years ago it may have been a lot like Earth, complete with an ocean of water. So, how did Venus go to hell? And could Earth be next?
This is the final episode of our four-part series, Lost Worlds, and it originally ran on December 1, 2021.
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