Quote:
Originally Posted by Ilya
Yes, that's what I meant -- within 30 years someone will start working on this.
I do not expect people to walk on Mars, let alone Neptune, until about 2100.
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Why do you not expect any people to walk on Mars until about 2100? I thought the US is seriously considering a program of manned exploration, first back to the Moon and then to Mars, with the Mars landing planned for somewhere in the next 30 years.
I don't think it's possible to walk on the surface of Neptune since as a gas giant, or more accurately, ice giant, Neptune does not likely contain any surface. Even if it does, a person would likely be crushed before reaching that surface.