A bit like worm holes then. ;)
We have found some planets that may contain life already, the equation does have some truth to it; which is that in our own little neighborhood there could be many civilizations like ours.
You also said that we may be able to travel at the speed of light, or...
I suppose, but not going on your yearly holiday to the Maldives, walking to your local tesco rather than driving and not have the lights on in broad daylight would help, yet most humans don't wanna know.
Technology will stop global warming with things such as clean and renewable energy, but at...
I'm 100% certain that we are not alone in our galaxy, let alone our universe, the drake equation (which is flawed but accurate to some sort of degree) suggests that their are 12,000 earths like ours in our galaxy, we've already discovered some planets that may contain life less than 30 light...
No human has ever seen an alien or an alien spacecraft as they simply just don't exist.
Well, they probably do, but the universe is so huge that any life form which tries to reach us would DIE before they get here.
Also, why would an alien want to come to our pathetic little planet? Humans are...