5 ms·

SpaceX will attempt to reach Mars by the end of 2026

5 points by wtcactus 9mo ago

Juliate 9mo ago
"Tensions surround the effort." You don't say. We don't even know what the world will look like in 3 months.
Bender 9mo ago
I always assumed their big ship is for putting weapons in space. Are they actually funded for building colonies on Mars? What percentage of the population are resilient, physically fit, highly intelligent and mentally stable enough to endure such a harsh environment? AFAIK most of the experiments in bio-domes located in deserts simulating Mars on earth had failed miserably.
stevenalowe 9mo ago
That is great news if they going to leave Musk there
- falcor84 9mo ago
  I suppose you're alluding to his famous quote "I'd like to die on Mars, just not on impact"[0], so yes, having him stay there would be a win-win for everyone. https://www.cnet.com/culture/elon-musk-at-sxsw-id-like-to-die-on-mars-just-not-on-impact/ https://www.cnet.com/culture/elon-musk-at-sxsw-id-like-to-di...
  - stevenalowe 9mo ago
    Nope just thinking about what’s best for the planet
    - falcor84 9mo ago
      Interesting. What would you say is best for Mars?
__patchbit__ 9mo ago
SpaceX to the surprise of everyone may perform the Mars sample return.
- deleted 9mo ago
  [deleted]
damnitbuilds 9mo ago
The crucial missing thing is in-space refueling. Spacex will start testing on the ground within weeks. I think it is reasonable to believe that - if there are no blockers uncovered, just steady development and testing - they could be testing it in space by mid-year and have it working by year-end. Then - as long as fuel storage in space works - I do not know of any other major impediments to launching an unmanned Starship mission to Mars. Sticking the reentry and landing will be hard, but Starships seem to handle tough reentries well, and Starships have already landed on legs on Earth. I am a pessimist on a manned Starship landing on the Moon within three years, let alone on Mars.
- Zigurd 9mo ago
  There are many milestones to go before in orbit refueling is possible, among them : 1. What efficiency are you expecting without ground-based fuel chilling? 2. Have you solved for lack of gravity? Your fuel is sloshing around weightless. 3. The necessary tempo of refueling flights hasn't been reached with test flights, and is far greater than the maximum tempo reached by Falcon 9, impressive though it is. These are just the big ones I can think of off the top of my head. Digging into the way that fuel tanks are prevented from crumpling while they rapidly empty of liquid methane probably reveals that that becomes much more complicated in micro gravity in orbit with multiple refueling connections to tanker flights. There are dozens of gotchas like that, and I don't think "they must've already planned for that" is an assumption supported by historical performance.
  - damnitbuilds 9mo ago
    Spacex would be stupid not to have done studies into all those things, as much as is possible on the ground. Spacex are not stupid.
    - Zigurd 9mo ago
      If by studies you mean renders, then yeah. Just like the lunar lander.

5 points by wtcactus 9mo ago

"Tensions surround the effort." You don't say. We don't even know what the world will look like in 3 months.

I always assumed their big ship is for putting weapons in space. Are they actually funded for building colonies on Mars? What percentage of the population are resilient, physically fit, highly intelligent and mentally stable enough to endure such a harsh environment? AFAIK most of the experiments in bio-domes located in deserts simulating Mars on earth had failed miserably.

stevenalowe 9mo ago

That is great news if they going to leave Musk there

falcor84 9mo ago
I suppose you're alluding to his famous quote "I'd like to die on Mars, just not on impact"[0], so yes, having him stay there would be a win-win for everyone. https://www.cnet.com/culture/elon-musk-at-sxsw-id-like-to-die-on-mars-just-not-on-impact/ https://www.cnet.com/culture/elon-musk-at-sxsw-id-like-to-di...
- stevenalowe 9mo ago
  Nope just thinking about what’s best for the planet
  - falcor84 9mo ago
    Interesting. What would you say is best for Mars?

__patchbit__ 9mo ago

SpaceX to the surprise of everyone may perform the Mars sample return.

deleted 9mo ago
[deleted]

damnitbuilds 9mo ago

The crucial missing thing is in-space refueling. Spacex will start testing on the ground within weeks. I think it is reasonable to believe that - if there are no blockers uncovered, just steady development and testing - they could be testing it in space by mid-year and have it working by year-end. Then - as long as fuel storage in space works - I do not know of any other major impediments to launching an unmanned Starship mission to Mars. Sticking the reentry and landing will be hard, but Starships seem to handle tough reentries well, and Starships have already landed on legs on Earth. I am a pessimist on a manned Starship landing on the Moon within three years, let alone on Mars.

Zigurd 9mo ago
There are many milestones to go before in orbit refueling is possible, among them : 1. What efficiency are you expecting without ground-based fuel chilling? 2. Have you solved for lack of gravity? Your fuel is sloshing around weightless. 3. The necessary tempo of refueling flights hasn't been reached with test flights, and is far greater than the maximum tempo reached by Falcon 9, impressive though it is. These are just the big ones I can think of off the top of my head. Digging into the way that fuel tanks are prevented from crumpling while they rapidly empty of liquid methane probably reveals that that becomes much more complicated in micro gravity in orbit with multiple refueling connections to tanker flights. There are dozens of gotchas like that, and I don't think "they must've already planned for that" is an assumption supported by historical performance.
- damnitbuilds 9mo ago
  Spacex would be stupid not to have done studies into all those things, as much as is possible on the ground. Spacex are not stupid.
  - Zigurd 9mo ago
    If by studies you mean renders, then yeah. Just like the lunar lander.