Grant Tremblay
@astrogrant
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Personal account. All views are 💯% my own and do not represent those of any institutions I'm affiliated with. No tweets here are newsworthy 😬
Joined February 2009
Headed to DC to visit @NASA HQ friends and represent @CenterForAstro at The Science Coalition's "Science of Space" event on the Hill, sponsored by @blueorigin @CTATech. Not an ad, just excited. Congress clearly is too.
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SpaceX’s new tentative schedule for HLS, per internal document I obtained: - Prop transfer June 2026 - Uncrewed lunar landing June 2027 - Crewed lunar landing Sept 2028 First in POLITICO Pro space newsletter👇
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Running theory that The China Syndrome (1977) is accidentally the most consequential film in history
Three Mile Island and Chernobyl convinced the entire planet nuclear fission was catastrophically unsafe. Despite the fact Three Mile island's containment system worked exactly as designed, preventing a genuine catastrophe. And Chernobyl was a catastrophe because the Soviets were
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Exquisite 👌
Almost 10 years after the first detection of gravitational waves, physicists have announced the strongest such signal yet. Produced when two black holes in a distant galaxy spiraled into each other, the merger enabled researchers to test Albert Einstein’s theory of gravity,
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Good overview of the landing. We nominally target a few hundred feet away from Jacklyn to avoid a severe impact if engines fail to start or start slowly. We’ll incrementally reduce that conservatism over time. We are all excited and grateful for yesterday. Amazing performance by
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Genuinely curious whether the hover over the water and then lateral translation to the barge was intentional or a correction. Either way they clearly nailed it.
Great display of how different Falcon and GS1 boosters approach landing - New Glenn has the ability to nearly hover and translate if accuracy is a bit off. And they nailed it!
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This dude made some dark pact with Mephistopheles, speedrunning some of the best astrophotography and most insane shots of all time
Immense planning and technical precision was required for this absolutely preposterous (but real) view: I captured my friend @BlackGryph0n transiting the sun during a skydive. This might be the first photo of it's kind in existence. See a video of this moment in the reply 👇
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🥳 bullseye. On insertion and also the booster landing dead-center on the feather
I loved the landing, but equally impressed with our team for the orbit insertion accuracy!
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Just making sure you all know that I was joking and this dedicated employee was not drunk on the clock 😬 (congrats, @JeffBezos)
I texted a friend at blue an I’m pretty sure he was already drunk
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I texted a friend at blue an I’m pretty sure he was already drunk
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serious question @davill could the booster mathematically be any closer to the geometric center of the platform? Doesn't look like it. Truly remarkable.
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my stream kinda froze at these two moments and I totally thought it missed
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😬
Every new propulsive landed booster makes more urgent the question - why are people still flying fully expendable rockets?
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New rule, a milestone rocket launch MUST occur in a daylight hour of whatever country led the effort, the national public MUST be able to watch inspiring things that give hope, especially amid all this crud. My mom isn't getting up at 2am to watch Artemis III launch.
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before and after moment for humanity's adventure in space. It's awesome for the industry (yes, including SpaceX) for other teams to succeed like this.
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The screenshots are Claude's review of the full PDF of the 1994 CTIO proposal that ultimately led to the 2011 Nobel Prize in physics. This is a cheap cherry pick, obviously, and a human might come up with these criticisms too. But ... plz read the proposals.
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Amid 13:1 oversubscription rates, our current observing proposal review model is clearly near a breaking point re: scale, and I worry that a quiet reliance on LLMs to help relieve that pressure will add yet more stochasticity to the process. Plz read the proposals. 😬
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We are recycling and resetting the clock with a new T-0 of 3:45 PM EST / 20:45 UTC.
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