Space stuff...

Anyhoo, I'm about to drift off for some feather.

I've made my point and you, yours.

Only time will tell.

Until there are boots on mars, I'm right.

Good night :-)
 
Good.
1 tonne.

Even apollo 11 was 5 tonnes, and they could barely swing a cat in that. And they were only in the lander for a couple of days.

To land and live on mars, it's going to have to be a sight bigger than that.
One single launch of the new generation of SHLV could put 12 tons onto Mars surface with a soft landing.

No one thinks a Mars mission would be a single launch from earth.
 
Keeping humans alive for long durations in space mainly, without help or sanctity from the mother planet. Landing on another planet. And taking off again and keeping the humans alive whilst doing so.

As Brig said, space is constantly trying to kill humans and is extraordinarily hostile. Humans are very needy.
Like a space station you mean? Where humans live for long periods in space.
 
A lot less than for a 100 million mile one.
Not an answer. Just say you don’t know.

I’d say more than the internal size of the moon lander…

And what happens when your breath on oxygen, you breath out… where does that all go….

Half a million miles ffs
 
Like a space station you mean?
Teathered to earth - no.
Where humans live for long periods in space.
With help from the mother planet and the safety net it offers. If hey had to send that tin can on a 9 month journey, land it on a hostile planet with no ground control there, take off again and travel 9 months back again, then yes, it woulld get my vote.

Otherwise - not even in the same vicinity no. Night v's day.
 
Not an answer. Just say you don’t know.

I’d say more than the internal size of the moon lander…

And what happens when your breath on oxygen, you breath out… where does that all go….

Half a million miles ffs
AsI understand it. The Air and waste water is recycled. Additionally they have tech to convert Mars' Co2 atmosphere to breathe - MOXIE. They also have found water too.
 
None in any useful/survivable amounts.
Water recycling is done routinely and very effectively at 98% efficiency.

O2 recycling is only around 50% efficient on the ISS but they're aiming for 75% for the equipment being developed now. I can't be bothered with the maths but that is a greater than 50/75% reduction in O2 needs as it compounds.

If we're going to Mars there's no chance we won't have pre-built and delivered an Oxygen generator to the surface in advance. After all, that has already been done on a small proof of concept scale.
 
Yep - it's not really the main problem that needs to be solved.

Overcoming muscle atrophy, decreased bone density (bone loss), cardiovascular deconditioning, vision impairment (Spaceflight Associated Neuro-ocular Syndrome - SANS), weakened immune systems, and elevated cancer risks from radiation exposure are a little harder.
 
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