Could frozen planets host hardy alien life under the polar ice?
If we want to find alien life, we shouldn't look for planets like our own.
This could point to space as the place of origin for life on Earth.
These extremophiles can survive on air alone.
Life was small — until it wasn't.
They will sample water to see if the world may host extraterrestrial life.
But humans might not be around to see them arrive.
The answer seems obvious.
The messages include a science and math tutorial, and 33 short pieces of music.
Hydrothermic vents could be a hotbed for alien evolution.
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