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The backup is not necessarily against a man-made catastrophe. A stray asteroid in the right place at the wrong time is perfectly capable of fucking up Earth wit
by dfcowell 7y ago
The backup is not necessarily against a man-made catastrophe. A stray asteroid in the right place at the wrong time is perfectly capable of fucking up Earth without our assistance.
- ryandvm 7y agoSurviving even a Cretaceous–Tertiary sized extinction event on Earth would be a hell of a lot easier than trying to terraform and permanently colonize a planet like Mars that is missing its magnetic shield.
- DarthGhandi 7y agoIn a Lagrange point it's actually quite trivial to create a man made magnetic field to protect the planet. Dr Jim Green, director of planetary science at NASA worked on it and fleshed out the details, it's viable and would actually restore a lot of the atmosphere stripped away constantly. As far as colonisation problems go the magnetic field is far down the list. There's a lot of work being done in this field. https://phys.org/news/2017-03-nasa-magnetic-shield-mars-atmosphere.html https://phys.org/news/2017-03-nasa-magnetic-shield-mars-atmo...
- DerekL 7y agoWhy don't we put effort into identifying and diverting the asteroids?