Was the title provocative enough for you? For the past several days headlines all over the web have read “US to shoot down satellite.” Ok, first off, that satellite is on its way down no matter what. That would be the problem. It doesn’t actually need shot “down.” Second, after it gets nailed by whatever […]
The latest episode of The Universe focused on our solar system’s hottest two planets: Mercury and Venus. In looking at each of these worlds, scientists are faced with Sun related issues no other planet has: we can never study these planets when they are high in the sky well after sunset (the ideal time to […]
Tonight I watched the latest installment of The History Channel’s “The Universe.” The week’s episode focused on Spaceship Earth (which re airs Sunday night). This episode addressed many different aspects of the Earth’s formation, how it gained a moon, and how the Earth+Moon system was able to support the formation and evolution of life. Along the way, the touched on some of my favorite elements of Earth science, specifically: how comets have carried water to Earth, the sharing of rocks (and possibly life) between planets, and global warming.
For some strange reason, the ideas of moving life around the solar system on rocks / comets / other random objects and alien life have been coming up a lot with me this week. First blogged on the probabilities of finding radio signals from aliens (hat tip to Fraser on that one), then Fraser and I talked with Swoopy about the new National Research Academies Report on things we need to think about in trying to find life on off of this world. And now… The Universe is jumping in and bringing up alien life as well.
And when talking about alien life in the solar system, I always thing about panspermia.