Stefan returns to challenge Hank on Quiz Show, and the rest of the SciShow Tangents crew decided to join in the fun!

Bacteria from a sneeze was inadvertently sent to the Moon. When it returned to Earth, it came back to life. What does this mean for the possibility of life in the Universe?



Physics - Universe - Learni

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A dramatic and information-packed account of the program to put a man on the Moon by the end of 1969.