Carl Sagan's bonkers idea—life inside a comet
Tuesday, November 15, 2016 - 12:05
in Paleontology & Archaeology
Establishing a sustained human presence somewhere other than Earth is a vital part of humanity's future, no matter what. We know that Earth won't last forever. We don't know exactly which one of the many threats that Earth faces will ultimately extinguish life here, but life will be extinguished completely at some future point.