Want an oxygen-rich atmosphere? Stuff oxygen’s friends in the mantle.
via arstechnica.com
Short excerpt below. Read at the original source.
Planet Earth has some pretty great qualities going for it. (Negative reviews mostly revolve around the staff and clientele.) Pretty high on the list of positives is a richly oxygenated atmosphere. But that’s something that evolved and built up over a couple billion years, only eventually resulting in a world conducive to animal life like […]