If you hopped in the Tardis and traveled back four billion years, you’d find yourself on a hot, miserable wasteland of a planet with nary an oxygen molecule to breathe. Earth used to be an asphyxiating hellscape, but over the eons, tiny green microbes filled the air with oxygen. New research finds they’ve been at it much longer than we imagined.
from Gizmodo http://ift.tt/1K7irLg
via Gizmodo
Nincsenek megjegyzések:
Megjegyzés küldése