Another awesome episode. Late on making a post about this because... I'm lazy? Anyways, this next Curiosity episode, hosted by Michelle Rodriguez, revolves around the question of "Are we ready for aliens, possibly hostile, to visit us?"
Really, it was interesting what they did. They went through the steps of a likely scenario. The aliens would likely be carbon-based organisms and they would be coming to Earth because it was similar to their own that was possibly in danger. Plus with the fact that they had the ability to travel between solar systems or maybe even galaxies would mean that they are a technologicly advanced race. And we are ants. First they would use a world-wide EMP. Then they would take out all coastal cities and such. And then launch biological weapons to finish humans off. And the only way we could fight is to use nukes to launch peices of metal into space or something?
Forgot the name, but it's basically putting a nuke half a kilo down into the ground, filling the hole with water, and placing a metal top of some kind. It weighed a few tons. When the nuke exploded, the water turned to steam which shot the metal top into the air. Scienist theorized that it would travel 6 times escape velocity, so that hundreds of these could possibly damage a mothership.
Oh. Another thing. Fossils found off a peice of rock from mars prove that some simple life (Bacteria and such) did live at one point or another on Mars. Meaning any planet in the habital zone of their stars in their solar system could have life. About 40 - 2,000 per galaxy. Billions of galaxies. You do the math.
So. What do you think? Could we survive an alien invasion? Is the alien invasion scenario in that Curiosity episode realistic?