Original title: What Actual Aliens Might Look Like

Summary by Gemini (slightly edited): This video is about the possibility of alien life. It discusses how life on Earth is incredibly diverse and exists in the strangest and most extreme places. The video then uses our imagination and real science to travel to three possible worlds, each more alien than the next. The first world is the ice hell of the planet Ipa, where life has evolved to be black to make use of the weak infrared light. The second world is the gas giant Nimbus, where life exists in the form of cloud plankton and sky whales. The third world is the moon Monier, where life has evolved to use ammonia instead of water and to incorporate magnetized minerals into its biology. The video concludes by saying that scientific speculation is fun but also useful, and that it can give us ideas about what we should look out for when searching for alien life.