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Comment Mars is still the goal (Score 1) 73

The Moon is target practice. We need to get away from innovative bespoke engineering, into industrial mass production with continuous improvement. To do that we need to fly often. Mars just doesn't have the launch window availability. The biggest part of the challenge is that we were born in the bottom of a deep well. To toss enough stuff out of the well for a long journey is critical. Boosters that reliably fly on time often and cheaply enough to get ships and fuel out of the well. Ships that carry fuel into orbit and return over and over since the vast majority of the material we need to send out of the well isn't payloads or ships, it's fuel. Kilotons of fuel. Once the factories and processes are set up for that going far beyond the Moon is fairly easy. But with a narrow opportunity every two years that's not going to happen in a human lifespan. It's not enough refinement cycles per year.

I see this accelerating the Mars objective, not deferring it.

Submission + - Ryugu asteroid samples contain all DNA and RNA building blocks

symbolset writes: More and more science is pushing back the Drake equation, reducing the parameters necessary for life to form. From the discovery that organic molecules are formed in the little red dot protogalaxies at the edge of our visible universe to AI models that identify a self replicating RNA molecule in only 45 nucleotides. Now comes Toshiki Koga et al with a study published in the journal Nature Astronomy reported on by phys.org finding all the nucleobases of RNA and DNA in pristine samples collected from the asteroid Ryugu. The bases being uracil adenine, guanine, cytosine and thymine. Ammonia was also found.

The universe it seems is made of soup.

Comment Re:Helium can be re-used? (Score 4, Interesting) 125

Is joke of course. Was angling for the same joke.

3He is normal helium atom with an extra neutron, hoped to be used in some forms of fusion. It's not considered radioactive. Emitted by the sun it's trapped in lunar rock possibly at concentrations of up to 50 parts per billion but more likely 5-10ppb. The utility of extracting it from the Moon is hotly debated. On Earth isolating it from normal helium involves the same sort of centrifuge used to isolate isotopes of uranium, radium, hydrogen but there is far less of it than in lunar soil.

This is not actually the case in the subject at hand. It's all normal helium. When cooled enough all other gases will precipitate out as they freeze - including Hydrogen - leaving only helium as a gas and so easily isolated. That's actually why it's valuable since it's the only gas that will boil off at temperatures so low that the conductors immersed in the fluid will superconduct supporting the currents necessary for the intense electromagnets used in imaging and such. /Explaining nerd jokes since 1983

Comment Re:Let me guess (Score 1) 166

This is nonsense. They skim from the first subcontractor to maximize proceeds from the top line while maintaining deniability. The prime gets a slice and then there's a sub-sub tree leaking all the way that eventually converges at a boiler room in India where the actual work is performed for $500.

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Technological progress has merely provided us with more efficient means for going backwards. -- Aldous Huxley

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