To visit these planets we need the technology to travel multiples of the speed of light like in the movies.
The former has a surface temperature warmer than the hottest ever recorded on Earth, and the latter has a temperature roughly equal to a normal day in Antarctica.
"Sure, it's breathtaking to look out and see the Earth. And probably, if someboy'd said before the flight, Are you going to get carried away by the Earth? I'd have said, Nah...yet when I first looked back at the Earth, standing on the surface of the moon, I cried. And if everybody had ever told me I was going to do that, I'd have said, "No, you're out of your mind."...Whether it was relief, or whether it was the beauty of the Earth, the majesty of the moment-I don't know., just every-you know, I never would've said I was going to do that. But I did."
-Alan Shepard, Apollo 14, who's not so complimentary nickname was "The Ice Commander"
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