Jan Keromnes

TIL not all astronauts lose bone mass in space. There is wide scatter. Some astronauts actually gained bone mass in space.

One of the most unreal photographs ever, except it is real. Continued world-class work by @AJamesMcCarthy

My best sighting of a Starlink satellite "train" from orbit!

Haven-1, the world's first commercial space station and America’s next space station, is now fully welded and will soon begin testing ahead of integration.

@joebarnard 500-700mg 😬 (about 3-4 cups a day) I tolerate it well but it has diminishing returns, and occasionally I realize it's too much and curb it for a bit (thanks for the wake up call!)

How much caffeine are y'all consuming per day?

I've been reflecting on the Starship program the last week and one thing has become obvious to me. SpaceX is enjoying the freedom to try and fail in a way they couldn't with Falcon 9. Doing anything "experimental" on the Falcon 9 was risky because it was SpaceX's only source of income, it was their lifeline, their work horse. Making any tweaks to the Falcon 9 to try and land a booster back in the day was a delicate balance. Don't push the envelope too hard because it could lead to a failure of the primary mission (which did happen twice). When SpaceX first landed a booster almost 10 years ago, they were fairly slow to refly and those first non "block 5" boosters were only capable of a couple of re-flights. This gave pause to some in the industry / community fearing all this reusability hype wasn't going to pan out. But SpaceX learned from every landing attempt to develop their Block 5 Falcon 9 which has now gone on to have a single booster fly 30 missions. Absolutely unheard of. Now imagine if SpaceX could've had the freedom to not worry about flying customer payloads to get data during Falcon 9's reusability campaign. Imagine if they could've tested engine out procedures or push booster reentry profiles, or try hot staging, or what have you. This is the phase that SpaceX is in now during the Starship program. I know we hear the talking point of "today's payload is data" and it could seem like a gimmick or excuse even, but that's a freedom almost no rocket program has had before. To know you can just try things out, fly real life hardware, without bankrupting the company, is the ultimate development platform. To be able to push engine out capabilities, remove heat shield tiles on purpose, test reentry profiles, have failures, have set backs, discover flaws, learn operations. When people say things like "Starship hasn't even reached orbit yet" are completely missing the point. They're not just trying to reach orbit, they're trying to do something that's never been done, build a rapidly reusable rocket. A rocket that can land and refly. This has never been done before and honestly it's silly to think you COULD do something like this without trying some extreme things. That's what we're seeing today, and that's extremely exciting to me. I can't wait to see version 3 of Starship fly because they've learned so many lessons already and they have a factory capable of making rockets at scale, and we just get to sit back and watch the cook. It's an exciting time to be alive.

@filiptronicek I see what you did there 😅 (and I fell for it)

Have to share some unfortunate news: today, it’s my last day at Gitpod. It’s been a wild ride with some amazing people and I don’t regret a single second of it. I’m looking forward to new adventures that are to come.

Our vision: An astronaut headed for a launch pad built by dreamers. No nation, no billionaires—just volunteers and a wild belief: That ordinary people can reach space. Help us make history. Support the mission at copsub.com/support-us Poster: bit.ly/2zlmli1

So how did @SpaceX get those amazing shots of the Starship landing in the middle of the Indian Ocean? A company called MarkSetBot makes a robotic bouy used for marking sailboat race courses. Controlled by an app, they can be setup to keep station (stay in one GPS location). Starship used their racing marker to stay put while it videoed the landing. Why not use a regular bouy and an anchor? The ocean is 5 miles deep there. So that wouldn’t work. @DJSnM (tagging him now he has more spare time hehe)

@karpathy I now put all unknown calls (that pass Android's spam block) through Google's AI screen, where Google asks what the call is about and I see a live transcript of the conversation. This usually makes spam callers immediately hang up, and I can still pick up if legit

I get ~10 spam calls per day (various automated voicemails, "loan pre-approval" etc) and ~5 spam messages per day (usually phishing). - I have AT&T Active Armor, all of the above still slips through. - All of the above is always from new, unique numbers so blocking doesn't work. - I am on all Do Not Call lists. - I have iOS "Silence Unknown Callers" on, but even if it catches & silences them I still get the notifications. Not sure if other people are seeing something similar or figured out anything that works

@s_chiriac Faster Bazel/AOSP/Chromium builds engflow.com

💥 Pitch your startup: - Max 6 words - Add your link Seen by 33,000 people last week. Yes, it counts as marketing, go! 🚀 #buildinpublic

@Lilblueorchid Oh no 🙈 get well soon and then have a great vacation! 🌴

I got sick the moment I got off work and I think it's so ironic that I'm not even mad tbh 😭

Hot gas meets graphite, phenolic, and aluminum. Hopefully in that order.  Design your own parts with Onshape: onshape.pro/BPSSpace #ad

Vast was featured in a recent episode of Business Daily from the @BBCWorld that recaps the International Astronautical Congress (IAC) 2024. The episode explores how public-private partnerships are shaping the future of science in low-Earth orbit, from pharmaceutical research to human health. Our CEO, @maxhaot, shares how we are working to build a future that enables long-term human habitation in space and how Haven-1 is a stepping stone to accomplishing that goal. Additionally, he shares how commercial platforms, such as Haven-1, can help governments advance space research. Listen to his interview below. bbc.co.uk/programmes/w3c…

At Mach 1.7, Overture outflies Earth’s rotation. So you can have breakfast in London… and fly to New York… for breakfast. And then to San Francisco just in time for breakfast. In fact if you just keep flying west you can keep having breakfast indefinitely.

Floating while you work beats any office chair!

@austinbarnard45 So cool, congratulations Austin!! 🎉 In a fantastic location too - where were these pictures taken? 😊

Here’s a lifetime with you🫶🏻💍

@smlpth Ha, apparently it's technically possible, but you need to be invited by an employee (and a long time in advance / for a good reason I presume) 🙃 #oneday

@jankeromnes How feasible is it to plan a visit to the SpaceX HQ in Hawthorne for a random software engineer like me? :)

If you think of someone or some place, please drop me a comment or a DM. Thank you :).

@smlpth Also if it were me going, I'd definitely try to pay a visit to the SpaceX HQ in Hawthorne if possible 😂 or maybe the Mojave desert's aerospace companies/experiments (but those might be big detours)

@smlpth Very cool! One of my nicest memories from my time in California was a long bike ride along the SF piers, across the golden gate, and then a bit further into the woods :)