David S. F. Portree aka DSFP

@dsfpspacefl1ght

Public historian specializing in space science, technology, and policy. Outreach educator. Science writer. Blogger. Consultant. Archivist. Mentor. He/him

Sonoran Desert
Vrijeme pridruživanja: srpanj 2015.

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  1. Prikvačeni tweet

    My 36 Patreon patrons are, as I write this, enjoying patron-only content that you, the non-patron, don't get to see. How can you stand that? Seriously, tho - please become my patron and support my spaceflight outreach efforts. $1 a month is all it takes.

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  2. proslijedio/la je Tweet

    This article gets at the core of the dilemma here, ultimately that a corporation gets to make decisions that have consequences for others without any compensation. It’s not unique to space, but it’s still at a point where we can help put it on a path that’s better

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  3. proslijedio/la je Tweet

    ... let's try practically (and watch out for the differences with English!) Here I explain how to build the sentence "Dw i'n gwisgo siwmper porffor"

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    Because yesterday was so hectic I forgot to post for so here is a late one! Ready to learn how to build a sentence in Welsh at the present tense? 🏴󠁧󠁢󠁷󠁬󠁳󠁿 Rewatch last week's episode about the verb "bod - to be" if you need a refresher...

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  5. proslijedio/la je Tweet
    prije 7 sati

    Imagine working for years to build a thing, and then saying goodbye to it because it will spend the rest of its life 177 million miles away from you.

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    prije 8 sati
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    Any publicly owned company would have already abandoned the project.

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  9. proslijedio/la je Tweet
    prije 10 sati

    Teleconference happening tomorrow to address the ongoing investigation into the Starliner Orbital Flight Test that occurred in December.

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  10. proslijedio/la je Tweet

    What's this? Another canid-musteloid duo? Another Himmapaanland tale? 😮 You've heard of Coyote & Badger. Meet Fox & Skunk!

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  11. proslijedio/la je Tweet
    prije 23 sata

    “Somebody puts up a shed that might obstruct my view by a foot, I can protest,” Stanek said. “But somebody can launch thousands of satellites in the sky and there’s nothing I can do? As a citizen of Earth, I was like, wait a minute.” reports:

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    We will be tweeting 's McNutt Lecture. He opens with quote from President Gerald Ford: "The state of the nation is not good." 1/n

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  13. proslijedio/la je Tweet
    prije 13 sati

    They’ve undertaken a campaign to undermine their own science that predicted global warming & its devastating impacts We can no longer allow fossil fuel orgs to shift the cost of paying for the effects of sea level rise & climate change to our taxpayers

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  14. proslijedio/la je Tweet
    prije 13 sati

    I am currently 17 hrs 08 mins 48 secs of light-travel time from Earth (2020:038:000000:2L)

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  15. proslijedio/la je Tweet

    This is amazing, but I'm afraid we never did a floor plan layout for the ship beyond what you see in the show. I think this means you can design to your hearts content.

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  16. proslijedio/la je Tweet

    Guess who made me dismantle my bed in order to grab her and get her into the cat carrier and over to the vet.

    SPOILER: It was Sugar.
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    Trump and his allies are poised to wage what could be the most extensive disinformation campaign in U.S. history this year—and we’re not ready. My new feature for the March issue of The Atlantic:

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  18. proslijedio/la je Tweet
    prije 13 sati

    Okay so Raffi doesn't just live at a place that uses Vasquez Rocks as a filming location as has been the case so many times before in Star Trek, she actually lives at the actual Vasquez Rocks. Amazing. Computer, erase fourth wall.

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  19. proslijedio/la je Tweet

    It would be good to have a follow-up article on the threat poses to low Earth orbit regarding space debris. See my earlier threads about this. SpaceX has already declined to move their satellites at risk of collision. 7/

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  20. proslijedio/la je Tweet

    Nice article by on satellites in . She mentions their effect on astronomical observations, similarities to radio pollution, how SpaceX has been able to skirt regulations, and talks to . But there's more. 1/

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  21. proslijedio/la je Tweet

    Awesome pics! Congrats ! When I landed on the shuttle I don’t think I smiled much..., trying not to puke!

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