Habitable? That's downright hospitable
A new study reveals bacteria can survive atmospheric entry
Meteorites could carry fossils between worlds, says new research
Proponents of panspermia theory say life on Earth came from elsewhere, hitching a ride on rocks sheared from other worlds...
The jury is still out, but skepticism permeates the scientific community
A delayed Russian mission will try again in two years to deliver Earth life to Phobos
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