ChrisA's latest activity
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CChrisA replied to the thread Blowing up: Inflatable space habitats could be key to exploring the solar system.I think the gas can be recycled. Air is mostly nitrogen (78%, I think). So they use liquidifed air to remove the dust and then...
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CChrisA replied to the thread Blowing up: Inflatable space habitats could be key to exploring the solar system.Clearly, they do not need to be flexible. But if they are, then more "stuff" can be launched in one rocket, The volume of payload...
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CChrisA replied to the thread NASA at a crossroads:' Budget woes, aging infrastructure and hard choices ahead.NASA is building payloads to put on top os SpaceX rockets. The payloads are the hard and expensive part. For example, an...
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CChrisA replied to the thread Mars Habitat Construction: Grow the materials needed on Mars!.If you are looking to reduce the cost you first have to have a very good cost model that adds up the cost of all the parts you need...
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CChrisA replied to the thread SETI tests new alien-hunting strategy, but TRAPPIST-1 planets remain silent.We are actually learning quite a lot from SETI. We now know there is no galactic Internet-like radio network. We know that no one is...
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CChrisA replied to the thread SpaceX catches giant Starship booster during historic Flight 5 rocket launch and landing (video).We hear this argument a lot. But what if you send people to Mars and want to provide them with electric power? Solar pannels don't...
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CChrisA replied to the thread SpaceX catches giant Starship booster during historic Flight 5 rocket launch and landing (video).Catching the booster in mid-air is impressive but I knew it would work after Musk said that the flight four booster landed in the ocean...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.Elons estimate of "The price of a house" was done assuming the best possible case where the Starship is already built and will be reused...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.No, Starship has some huge problems. #1. There is no way to abort a launch, If anything goes wrong everyone dies. It will be really...
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CChrisA replied to the thread How SpaceX built a new spacesuit for Polaris Dawn's private spacewalk (video).So apparently these new suits are now demonstrated and tested for exposure to space of the upper body for about 10 minutes. This is a...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.Yes, predictions are hard to get right the farther into the future you try to predict. So let's keep it to this decade... Notice...
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CChrisA replied to the thread SpaceX's Starship will go interstellar someday, Elon Musk says.I don't think even Elon Musk thinks humans will be traveling to other star systems. We don't live long enough to survive even 10% of...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.The above is correct but does not apply to Musk's plan to use Starship. In the far future, we might use a specialized and faster crew...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.But notice he never said the crew would return to Earth. The crew would have to hope that (1) one day some technology would be...
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CChrisA replied to the thread SpaceX will start launching Starships to Mars in 2026, Elon Musk says.I agree that some kind of specialized Mars-orbit to Mars-surface and back vehicle is needed. But if you listen to Musk, he thinks...
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