It is important because that way they know if an asteroid is going to crash into Earth and if it is they can warn everyone.

I would use it to sneak into a terrorists base and kill him or her.

i think it is awesome and I would love to have a pair of those shoes

Very thoughtful. Great comment!

If any body has read War of the Worlds or has simply done a science experiment (I know those are two very different things, but trust me, they connect) then you would know that if you even change the tiniest thing in any of the variables, you'll know that the result will conclude differently. I think that if any microbes from Earth came i contact with alien life that it would definitely change the outcome had it not. So, I think maybe observing before we jump to see what is going on is most likely a better option.

I think it would be cool.

I think it is pretty cool and I like the airplane part.

Well, for one, if the ice hotels were permanent it would go from "The Ice Hotel" to "The Puddle". I'm sure the sand would last a little while but erosion would take a great deal of it away. Also, if you keep a special thing like these hotels in a certain place and you are able to preserve them, they wouldn't be as special anymore. You just lose interest and when you walk down the street with your friends you just start saying, "Oh, yeah. Look, somebody's tongue got stuck again on the ice on the door. I guess they'll just have to call the Ice Police." See, you just start getting used to it and that's probably not one of the people who build these things goals.

The coolest selfie i have seen is a guy on top of a huge statue.I think it is dangerous.