Space stuff...

[Dec27]

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.

That’s truly laughable. They will send an oxygen generator to mars ahead of time so it can land, build its self, start working and produce a breathable atmosphere!!!

Cool story Bro….

 

[IT Minion]

Not much use for the journey there though.

That's what bottles are for. 800g a day per person, halved or quartered. It's hardly a difficult problem.

 

[Brigadier]

That's what bottles are for. 800g a day per person, halved or quartered. It's hardly a difficult problem.

But it is yet another one of a myriad of "nothing to fret over" non-issues , each of which will kill the crew in seconds, minutes, hours.......

 

[IT Minion]

But it is yet another one of a myriad of "nothing to fret over" non-issues , each of which will kill the crew in seconds, minutes, hours.......

It's the same issue that has been there for every space mission with humans ever.

 

[pete01]

You doubters are gonna be sorry in 2050....Mark my words...

 

[Brigadier]

It's the same issue that has been there for every space mission with humans ever.

I've never said otherwise.

I'm not the one who is posting that space travel beyond the earth - moon system is not a near-insurmountable challenge though.

 

[aveatry]

Loads of water in the form of ice on mars and some studies indicate liquid water under ground

 

[Brigadier]

Loads of water in the form of ice on mars and some studies indicate liquid water under ground

Great. Not much use for the journey though

 

[aveatry]

Great. Not much use for the journey though

80% of the space station water is recycled

 

[noseall]

It's the same issue that has been there for every space mission with humans ever.

In survivable touching distance of safety - yes.

Mars is a lot more dangerous and difficult in that respect and seemingly what people are forgetting.

 

[Brigadier]

80% of the space station water is recycled

And 20% isn't.

And more is a few hours away.

And if it isn't, they'll get in an escape pod and be swimming in the stuff a few hours after that.


En route to Mars? They'll die.

 

[noseall]

And 20% isn't.

And more is a few hours away.

They are re-supplied regularly. Every month and a half or so.
As said, the Mars travellers will be long dead if anything goes wrong.

 

[IT Minion]

And 20% isn't.

And more is a few hours away.

And if it isn't, they'll get in an escape pod and be swimming in the stuff a few hours after that.


En route to Mars? They'll die.

That's discussed in the Mars reference mission plan. They've got extensive experience running those things and include 20% mass for replacement parts and 30 days 'open loop' supplies to allow for repair time.

 

[Brigadier]

That's discussed in the Mars reference mission plan

Because it is yet another way to die, and quickly too.


It's hilarious really, the number of keyboard experts on here who are so nonchalant about space travel, when someone who really appreciates the issues - Chris Hatfield, the Canadian guitar-playing ISS astronaut - was anything but:

I'm paraphrasing here, but it was along the lines of

"Space is trying to kill you in a thousand different ways, all of the time. And we're just trying to not be killed by this thing, long enough to start trying to not be killed by the next thing".

And he was metaphorically skimming the clouds.

 

[motorbiking]

I wonder if you’ve ever taken a flight? Any number of things can go wrong and kill everyone in seconds. Yet millions travel by plane every day.