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From: "E.Laureti" <user2039@newsgrouper.org.invalid>
Newsgroups: talk.origins
Subject: Re: With us to Mars
Date: Tue, 18 Mar 2025 12:28:25 GMT
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JTEM <jtem01@gmail.com> posted:

>   E.Laureti wrote:
> 
> > Only we can get to and from Mars with a human crew
> 
> I'd be satisfied with an automated return mission.
> 
> Think about it:
> 
> Humans can perform the work of a "Mars Rover" in a tiny fraction
> of the time. Humans walk *Oodles* fast than those damn things
> move. They cover a disappointingly small amount of ground. But...
> 
> They'd be stuck on their feet. They're not going to have a cart
> to drive around on, a 4-wheeler or anything. If that were possible
> why note just send a lander that size, with that speed and those
> capabilities? It would be infinitely easier and cheaper.
> 
> No food.
> No water.
> No humans.
> 
> Think of how much LESS weight, size & cost you'd need eliminating
> all that, and going with a robotic version!
> 
> Buzz around HUNDREDS of miles, maybe THOUSANDS instead of the 20
> that Curiosity managed over an entire DECADE!
> 
> Yes:  20 miles per decade!
> 
> A little less, actually. It took it just over 12 years to go less
> than 20.5 miles.
> 
> So humans can walk about 4 mph, call it 2 mph with all that gear,
> so two humans can cover the same ground in five hour.
> 
> Five hours compared to 12 years!
> 
> So you're not wrong. But the proverbial "Quantum Leap" could be
> achieved with a larger, faster, more capable rover.
> 
> We can build a vehicle that can cover 10 or 100 times the
> distance in a fraction of the time. And THAT is likely a far
> simpler and cheaper and safer than sending humans, AND it would
> be another step (more lessons) towards a really successful
> manned mission.
> 
> 

really i don't uderstand of what propulsion you speak.
It you want ... write here

https://www.tumblr.com/communities/pnnpropulsion