Unclear Engineer's latest activity
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UUnclear Engineer replied to the thread Japan's priceless asteroid Ryugu sample got 'rapidly colonized' by Earth bacteria.It seems like the researchers should have analyzed the DNA of those microbes. It would have provided more conclusive evidence of...
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UUnclear Engineer replied to the thread A super-Earth beyond Mars would have made Earth nearly uninhabitable.Helio, to save you some work, I am not trying to focus on the relative sizes of the rocky planets as a function of distance from their...
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UUnclear Engineer replied to the thread A super-Earth beyond Mars would have made Earth nearly uninhabitable.Thanks for the table, Helio. I am only seeing one entry with a radius that looks like a "Jupiter" - AU Mic c at 30. 61 earth radius...
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UUnclear Engineer replied to the thread How China plans to put astronauts on the moon by 2030 (video).Interesting that China plans to put a "lunar landing stack" into lunar orbit with a second rocket. So presumably, the descent stage...
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UUnclear Engineer replied to the thread A super-Earth beyond Mars would have made Earth nearly uninhabitable.Thanks Helio, What I would be interested in seeing is any system with a gas giant in a closer orbit than some rocky planet the size of...
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UUnclear Engineer replied to the thread A super-Earth beyond Mars would have made Earth nearly uninhabitable.The video in this article is interesting. It shows small rocky planets sublimating from dust at a particular radius in the...
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UUnclear Engineer reacted to m4n8tpr8b's post in the thread Scientists find highest energy cosmic ray electrons ever seen with
Like.
40 TeV for an electron with a rest mass of 0.511 MeV, that's a Lorentz factor of 7.8 ×10^7 (meaning it's relativistic mass was 78... -
UUnclear Engineer replied to the thread James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever.I am not so sure that we can say that galaxies with redshifts z>14 are actually "exceedingly rare" at this point. Considering the tiny...
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UUnclear Engineer replied to the thread NASA tests cellphone-sized underwater robots for future ocean world missions (video).You see to have missed the point that the "drivers" of your submarine bots would need to be on the boats, to avoid the lag time for...
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UUnclear Engineer replied to the thread NASA tests cellphone-sized underwater robots for future ocean world missions (video).I think you would find that the prey fish are more agile than the game players, given the lag between the suburban basements and the...
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UUnclear Engineer replied to the thread NASA aircraft uncovers site of secret Cold War nuclear missile tunnels under Greenland ice sheet.Maybe Dave should investigate to see if "The Thing's" alien space craft is really there? :rolleyes:
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UUnclear Engineer replied to the thread James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever.""With so little time available, there are not many ways you can form galaxies. " So, what is it going to take for BBT folks to redo...
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UUnclear Engineer replied to the thread How do astronauts weigh themselves in space?.Good article. We were asking that exact question in comments on an earlier article about Suni William's health rumors.
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UUnclear Engineer replied to the thread If dark matter is 'invisible,' how do we know it exists?.Bolide, your definition is the "engineering" version, which I am only trying to explain is not the same as the "theoretical physicist"...
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