Saturday, June 13, 2009
Worrying About Nothing
The second paper was about planetary orbits fluctuating, leading to planetary collisions - possibly the end of the Earth. Good grief, what hyperbole! That's like a baby worrying about getting hit by a meteor when he or she is 80 years old. Both this paper and the previous one have likely ignored the paper on orbital engineering that came out a year ago. Within 100 years, we will have the technology to move and direct asteroids and icy bodies within the solar system for orbital and planetary engineering projects. We could move Venus and Mars into habitable zones with this technique, and Earth can be moved to a higher orbit which would offset the solar heating. It would even allow us to move icy bodies from the outer solar system to impact with Mars and Venus to create oceans. We would also have to create a large enough artificial moon for Mars to remelt the core and create a magnetic dynamo which would recreate a magnetosphere and protect the regenerated Martian atmosphere. With the addition of water to Venus, and perhaps genetically engineered photosynthetic microorganisms, the Venusian atmosphere might be rendered breathable and cooler. I'd have been more impressed if the articles had not been so alarmist.