Quote from: rakaydos on 10/15/2021 06:33 pmQuote from: colbourne on 10/12/2021 11:37 amYou can extract chemicals from the Venus atmosphere, including apparently metals. Plastics would be the way to go for most items.It would be much easier to have a one way human mission. I am sure there would be volunteers especially amongst the very old or people with serious life critical illness, to be able to say they have lived on two (or three) planets.The gravity well, and difficulty of taking off from a cloud base means unfortunately there is not currently much alternative.I see a potential venus base more like space-austraila. Skilled technical people who have committed sever[e] crimes might have their sentances[sic] reduced to Transportation- effectively a life sentance[sic] doing valuable work.Australia is a place where naked humans can thrive using just the resources and tech that are available for the picking up as they walk by. The Venusian atmosphere is a lethal gas chamber.Skilled technical people who have committed severe crimes are the one who can afford a good lawyer and get a plea-bargain. The disadvantaged and uneducated are the ones who are incarcerated.Then there's the cost of a penal colony. How much does society want to spend per prisoner when it's so cheap to lock someone in a cage on Earth? Finally, how are you going to get guards and support staff to sign up for permanent exile?It's a silly fantasy.
Quote from: colbourne on 10/12/2021 11:37 amYou can extract chemicals from the Venus atmosphere, including apparently metals. Plastics would be the way to go for most items.It would be much easier to have a one way human mission. I am sure there would be volunteers especially amongst the very old or people with serious life critical illness, to be able to say they have lived on two (or three) planets.The gravity well, and difficulty of taking off from a cloud base means unfortunately there is not currently much alternative.I see a potential venus base more like space-austraila. Skilled technical people who have committed sever[e] crimes might have their sentances[sic] reduced to Transportation- effectively a life sentance[sic] doing valuable work.
You can extract chemicals from the Venus atmosphere, including apparently metals. Plastics would be the way to go for most items.It would be much easier to have a one way human mission. I am sure there would be volunteers especially amongst the very old or people with serious life critical illness, to be able to say they have lived on two (or three) planets.The gravity well, and difficulty of taking off from a cloud base means unfortunately there is not currently much alternative.
Of course, it is possible at this point that Starship development will fail. For instance, the foam shredding problem of the Shuttle turned out to be unsolvable. It is a possibility that the Starhip heat shild will have similar difficulties. Or, did they solved the sloshing problem during the flip manuever, or they were just lucky with SN 15? Failure of Starship would end SpaceX, as we know it.
Quote from: geza on 10/16/2021 10:03 amOf course, it is possible at this point that Starship development will fail. For instance, the foam shredding problem of the Shuttle turned out to be unsolvable. It is a possibility that the Starhip heat shild will have similar difficulties. Or, did they solved the sloshing problem during the flip manuever, or they were just lucky with SN 15? Failure of Starship would end SpaceX, as we know it.Not really.Consider:If they fail at the rapid reuse goal for Starship, they can just descope the entire project to Super Heavy Lift (Semi-Reusable); in effect a giant version of Falcon 9 with a reusable booster and expendable upper; capable of pushing >200 tonnes to LEO for a marginal cost of maybe $150 million.That alone kills SLS and opens up entire economic opportunities -- for example, if 200 tonnes are going to orbit each flight at a cost of $750/kg; it only costs someone $375,000 to put a 500 kg satellite into orbit if they sign onto a Superheavy Expendable rideshare.EDIT: This is another example of SpaceX's forward thinking securing their economic future. Yes; they're spending a lot of money on Starship/Superheavy -- and yes, some concepts such as the heat shield they have in mind may not work; but the entire system is cheap enough that they can descope to get an immediate minimum viable product (MVP) that's a massive improvement over their current top of the line product; Falcon Heavy.
Also the foam shedding problem wasn't unsolvable, not really. It destroyed one shuttle in 135 launches and didn't even occur once during the first 100. If Starship has a 1 in 100 failure rate on landing it would preclude landing crew on the vehicle but the cost savings for reuse would still be immense.
I hope to the 2030s we will see at least two mars expeditions. So much hype and things were done for these missions and that would be satisfying to finally see. Fingers crossed.
Quote from: JackWhite on 10/25/2021 09:52 amI hope to the 2030s we will see at least two mars expeditions. So much hype and things were done for these missions and that would be satisfying to finally see. Fingers crossed.Low bar...
Quote from: meekGee on 10/25/2021 12:47 pmQuote from: JackWhite on 10/25/2021 09:52 amI hope to the 2030s we will see at least two mars expeditions. So much hype and things were done for these missions and that would be satisfying to finally see. Fingers crossed.Low bar...Well it is a martian atmosphere...