It is a planet but for us it is our world Earth.
There's probably plenty of them (Earth-like planets) in the overall Universe but I don't know if we will ever get to them.
The tyranny of distance, and the limitation of the speed of light plus the time it has all been evolving.
There's probably plenty of them (Earth-like planets) in the overall Universe but I don't know if we will ever get to them.
The tyranny of distance, and the limitation of the speed of light plus the time it has all been evolving.
It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche