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ChrisA's latest activity
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ChrisA
replied to the thread
SpaceX will start launching Starships to Mars in 2026, Elon Musk says
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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...
Sep 9, 2024
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ChrisA
replied to the thread
SpaceX will start launching Starships to Mars in 2026, Elon Musk says
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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...
Sep 9, 2024
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ChrisA
replied to the thread
SpaceX will start launching Starships to Mars in 2026, Elon Musk says
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He has one very hard problem with launching people to Mars. There is no way for them to return to Earth. After Starships lands on...
Sep 9, 2024
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ChrisA
replied to the thread
The great silence: Just 4 in 10,000 galaxies may host intelligent aliens
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Complex life likely does depend on the "rock cycle". Without any way to recycle the crust, a planet would be worn down smooth with...
Sep 1, 2024
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ChrisA
replied to the thread
SpaceX's Falcon 9 rocket can return to flight, FAA says
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We did not know the failure was with a system that is used only for landing. What if a turbopump exploded a half-second before...
Sep 1, 2024
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ChrisA
replied to the thread
Space tourism: What are the pros and cons?
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The Writght brothers were not rich. Their dad was a preacher and they owned a bicycle shop. In the early days, the people in the...
Aug 30, 2024
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ChrisA
replied to the thread
FAA requires investigation into SpaceX Falcon 9 landing failure
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SpaceX fanboys need to think. How can you say it is safe to fly the rocket if you have no idea what caused the problem? Likely it...
Aug 30, 2024
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ChrisA
replied to the thread
Blue Origin's powerful New Glenn rocket to debut this October with NASA Mars launch
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It is a gamble. They could have placed a block of concrete on top to simulate a real spacecraft or did like SpaceX and put a sports car...
Aug 30, 2024
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ChrisA
replied to the thread
What happens when your warp drive fails? Scientists have the answer
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If the warp could have its gradient reduced to zero in a VERY short amount of time. The people inside would not feel anything because...
Aug 29, 2024
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ChrisA
replied to the thread
What happens when your warp drive fails? Scientists have the answer
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You are right in that the ST canon never says anything about the shape of the wrapped space. But they do say that the shape is such...
Aug 29, 2024
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ChrisA
replied to the thread
Monetizing Space
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It is possible for methane/oxygen rockets to be carbon neutral. As of today, they are not. What matters is where you get the methane...
Aug 29, 2024
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ChrisA
replied to the thread
How can we build landing and launch pads on the moon?
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I don't understand how the vacuum reduces the heating. I think it goes the other way. In a vacuum you only have radiative cooling...
Aug 22, 2024
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ChrisA
replied to the thread
Monetizing Space
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You were right to do so. A colony needs a way to support itself economically. Even if we assume the colony has a perfect communist...
Aug 21, 2024
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ChrisA
replied to the thread
Are we alone? Intelligent aliens may be rare, new study suggests
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Yes, even if there were an Earth-twin with humans just like us only 100 light years from our planet, we would not know about it because...
Aug 21, 2024
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ChrisA
replied to the thread
Question
ISS Reusability
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I just wrote about the relative magnitude of household cook stove to rocket launches. But why stop there? Why not compare the...
Aug 21, 2024
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