Activity for Simba‭

Type	On...	Excerpt	Status	Date
Question	—	Major impact on the Moon I've been watching the recent news about the close pass of the interstellar object 'Oumuamua'. It apparently passed as close to us as 60 times the distance between the Earth and the Moon at it's closest point. That's really not far away at all, relatively speaking, so there is the obvious question o... (more)	—	about 7 years ago
Question	—	Maximum habitability of a planet with no indigenous life I've been thinking about terraforming and planets in general. We can look at the planets we know that might be terraformable - Venus and Mars - and understand the technical requirements for doing so. We can even imagine other planets and what might be necessary for them. What I'm trying to create i... (more)	—	about 7 years ago
Question	—	Warming up Mars The vast majority of the sun's energy is wasted -- the light and warmth are sent out in a spherical shape, and the planets only pick up those little bits of energy that happen to be going in the right direction. If we could harness some of the energy that goes in other directions and redirect it tow... (more)	—	over 7 years ago
Question	—	Vanishing oxygen So here's the premise: We have an Earth-like planet, with a civilisation at roughly the same state as ours today. Scientists have been monitoring the atmosphere for centuries, what with forecasting the weather and the whole debate about greenhouse gasses, and all that. So far nothing unusual. But n... (more)	—	almost 9 years ago