I don't know about NASA, but I know Stephen Hawking believes that. I don't. They're going to travel all that way and then destroy us? Why would they do that? If we ever discover life elsewhere, we're going to study it and if it shows signs of high level intelligence, we're going to try to communicate with it. Destroying it wouldn't even be on the agenda under any circumstances, would it? The only reason we would ever have of trying to destroy life on another planet would be in self defense if we're attacked.shamahan wrote:A couple of years ago there was an article of scientists I believe from NASA who argued that the possible contact
with another civilization could be fatal for Earthlings.
Besides, aliens wouldn't need to destroy life on this planet. We seem to be doing a pretty good job of that ourselves. Even if aliens managed to figure out how to build spacecraft to get them here, that doesn't necessarily mean they've also developed weapons that are any better than ours.
I think some people have seen too many science fiction movies. And it's science fiction. Science fact is a little different. Our research scientists study other planets to try to discover and learn. I don't know of any that are hoping to find intelligent life elsewhere and then destroy it, enslave it, or do anything else harmful to it. They want to learn from it. Why would intelligent aliens want to be any different?
Maybe one of these days we'll find out.