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Cake day: June 25th, 2023

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  • Yes, but Gemini and Apollo were 50+ years ago. Airlocks are likely safer for everyone since ISS and shuttle spacewalks all used them. I think the ISS one also allows prebreathing in the hours before spacewalks to minimize chances of the bends.

    And good point about hardening the electronics and equipment. That has to be a requirement regardless I guess since a depressurization could happen on any flight. But depressurizing then repressurizing them during flight increases the risk of something happening compared to not doing it.


  • So who on the crew will perform the spacewalk?

    “We’d say all four of us are doing it — there’s no airlock and it’s being vented down to vacuum” inside the spacecraft, Isaacman said.

    Interesting choice. Some sort of airlock module attached to the hatch seems like a better idea, but maybe that isn’t possible. Hope those EVA suits work well since there’s a 4x chance for failure with all 4 of them facing the harshness of space. Same goes for the internal capsule controls/modules/computers.










  • Biggs grew emotional as he talked about his daughter, swearing on her life that he intended Jan. 6 to be his last event with the Proud Boys.

    “I’m done with it. I’m sick and tired of left versus right,” Biggs said. The only group he wants to be affiliated with, he said, is his daughter’s PTA.

    He’s an asshole. And he is sorry; sorry that he got caught. He’s sick of it now, but wasn’t then. He makes no statement about the victims of his violence. He makes no statements about the millions of nameless victims whose votes he wanted overturned.

    Even if he had said he regretted acting on Trump’s lies, it wouldn’t mean a thing. He is just upset he got caught and punished. He’s an asshole.



  • ryrybang@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    1 year ago

    In 2016, aerospace giant Northrop Grumman invited me and 14 other professors and NASA scientists—all experts on exoplanets and the search for extraterrestrial life—to Los Angeles to answer one question: What will exoplanet space telescopes look like in 50 years?

    In our discussions, we realized that a major bottleneck preventing the construction of more powerful telescopes is the challenge of making larger mirrors and getting them into orbit. To bypass this bottleneck, a few of us came up with the idea of revisiting an old technology called diffractive lenses.

    Color me skeptical of this story. The author no doubt believes it.

    But the fact that this was organized and sponsored by NG makes me skeptical of this take. Maybe it’s less scientists innovating and inventing and more an NSA/NRO-approved, NG-led, soft disclosure of technology that already exists. The scientists are likely reinventing the wheel after getting a nugget of an idea seeded by NG.

    Civilian optical space telescopes lag far behind spy ones. Literally decades.

    KH-11 is much, much older than Hubble.

    Some improved KH-11s were deemed unnecessary or out-of-date and gifted to NASA. Never flown, still in a warehouse somewhere.

    I have strong suspicions that Webb’s folding mirror system wasn’t exactly new and novel either. Probably just a refinment of something NRO and Ball Aerospace worked out many years prior. No hard evidence for that, however.

    Anyway, long-winded way of saying there’s a decent chance these guys are trying to figure out something that’s already floating around up there and maybe already 5-10 years old or more.

    https://en.wikipedia.org/wiki/List_of_NRO_launches#Launch_history?wprov=sfla1