Its axis is tilted slightly more than ours, at 25 degrees, unlike weirdly slanted Uranus. One of the things that you've written about is the role of Antarctica in preparing us to go to Mars. So let's think about whether or not Mars should be pushed in that direction. We co-ordinate with the Committee on Space Research as a consensus where there is an international planetary protection policy. The Mars Terraforming Debate was co-sponsored by NASA's Astrobiology Magazine, the SciFi Museum (Seattle), and Breakpoint Media. It would be an interesting story. It’s a reminder of how lonely we remain on our pale blue dot, the only home we have ever known. Greg Bear: Well, my people weren't by and large genetically modified, although they did have biochemistries installed so they could survive the lower gravitational fields or weightlessness. The question in my mind is - should we bring it back to life? But I think the problem for us as a scientific community, and the problem for the public as a whole, is that until we know enough about the subsurface of Mars to make an informed decision, it's really difficult to move forward. I started working here at NASA Ames as a postdoc with Bob McElroy on controlled ecological life-support systems. In fact, we had bacteria that were not really happy when other organisms showed up and started breaking water (molecules), and making oxygen, and releasing it into the atmosphere. you're talking about the very earliest thought processes of an organism that's going to be much larger than our solar system eventually. I mean, basically what we can do is try to prevent that which we don't want to have happen. There's pride of people who've come into a technological age after we have. TheAtlantic.com Copyright (c) 2020 by The Atlantic Monthly Group. It's constant, but it's very slow. Microbes ruled the Earth. I think an objective assessment of the situation leads us to be very pessimistic that that life survived intact today. New evidence collected by the Mars Reconnaissance Orbiter suggests that Mars once had volcanoes that resided and erupted under ice. So I think that this exercise of considering terraforming Mars is very good for us, and is maybe a first step towards attaining the kind of wisdom that we need to someday be smart enough - not just technically, but also ethically and in terms of collective decision-making - to terraform Mars. The moon was never alive. If there's life on Mars today, it's subsurface. So anything else you want to say about terraforming Mars? In that case, I think we'll have to go and try to kill all the bacteria that are already there, inside the boxes that we've left, and try to clean up and really study it from a distance. Two different systems or more get together, clash and conflict, and there's a lot of casualties along the way. We're having trouble not veneraforming the Earth, in a sense. Look at how badly we're screwing it up. The probe studied a region of the Red Planet known as Sisyphi Montes.

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