Quote #178,438
"Earth is going to lose its oceans in the future, just as Venus did in the past. How long planets ret..." — David Grinspoon
Earth is going to lose its oceans in the future, just as Venus did in the past. How long planets retain their oceans is a function of distance from the sun, all other things being equal.
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View AllWhat we should really be thinking about is what it would look like for a truly intelligent technological species to be interacting with their planet's atmosphere.— David Grinspoon
Mars does not have an atmosphere and does not have a magnetic field today, so the planet doesn't have the protection from radiation that our atmosphere and magnetic fields provide us on Earth.— David Grinspoon