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Everything posted by RCgothic

  1. Sure you can. The first module just has to include a manipulator arm.
  2. Crew Starship can't go to TLI without refuelling, and there's a large obstacle to crew rating it. It's a long pole. Capsule on top of an expendable starship is the easiest and fastest way to put crew on it, and it keeps Orion and the Artemis archeture basically as-is without starting again from scratch.
  3. They wouldn't need header tanks on an expendable starship because it's not landing anywhere. They're pretty easy to leave out. Expendable Starship has already been mooted, and for Orion it'd be even easier because no fairing is required, just a stage to spacecraft adaptor which is not difficult to make from stainless steel.
  4. Successful 2nd stage relight is beginning to look unlikely.
  5. No, I means Superheavy + an expendable Starship 2nd stage without fairings, legs, fins etc, just an adaptor to fit Orion up top. Without refuelling Starship can't send any payload to the moon whilst lugging fins, fairing and reserve fuel for landing, but with those stripped away it's comparable to SLS at minimum. It'd be a really easy conversion - with stainless steel it's not like they'd need to hexgrid a new adaptor. And with a capsule with LAS up top and no attempt to reuse the upper stage it shouldn't be harder to crew-rate than F9.
  6. This was a validation test though, not a development test. It was supposed to be right first time and this programme is not hardware-rich. They can't just swap in the next engine or the next booster stage. At worst, if this needs a redesign of the engine bay the programme may not survive.
  7. In response to "how do humans train a better AI" the answer is - there's far more time available for review than there is in the moment. Also most accidents are caused by distracted idiots. AI will always be focused on the road and will always have the same capacity of decision making.
  8. Launch! Very long hold down, about 8s. Lept off the pad, but small rockets always look fast. Camera tracking is rubbish.
  9. In addition to the things other about helium people have mentioned, (low density, resistance to being a liquid, inert), probably the most important thing is that helium provides exceptional pressure per kg. The ideal gas law is PV=nRT. R is the ideal gas constant, so at similar T and V, P depends solely on "n", the number of atoms/molecules in the volume. Because helium gas has very low atomic weight, it has a very high "n" per kg, better than any other substance except hydrogen (which due to having diatomic molecules is not as ideal a gas). This means you need less mass of helium to
  10. https://www.nasa.gov/feature/ames/planetary-sleuthing-finds-triple-star-world It seems like NASA have detected a planet in a Trinary Star System!
  11. Apparently they're going to overlay the existing arrays, angled out at 10 Deg. Sized to go uphill rolled up in a dragon trunk, which sounds incredible to me. This offends my sense of symmetry tbh.
  12. Wow, ok. Wonder how they're launching and getting installed. Russian self-piloting extra modules you can kind of understand. Solar panels are something else entirely!
  13. You guys may be a little ahead of me here, but I haven't seen it spelt out explicitly - it's not SN12 in the mid-bay. It's SN15. So looks like they're skipping 12,13,14.
  14. It's not immediately clear where the fault lies. Yes, it was during payload integration at a SpaceX facility. But it could be a faulty customer adaptor, like Zuma. Or maybe SpaceX did do something wrong this time. Impacts can easily have dozens of hundreds of Gs of acceleration. Hope some of the peripherals acted as crumple zones!
  15. The Transporter 1 ride-share mission is in trouble. In addition to the sats that don't yet have a license leading to Starlinks potentially being added to make up the payload at a very late stage, 2 DARPA sats have been inadvertently ejected from their dispensers.
  16. They're going for a second attempt, so it must have been an abort.
  17. Don't know. Could be they wanted a short one, or could be an early abort. We won't really know until they press on to flight. In other news: SN6 has had its mass simulator removed, paving the way for it to be mated to the lunar mockup.
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