Spaceflight 🚀Dec 20, 2022
Given an #ISS #emergency, which kind of #atmospheric #reentry would you prefer ? "Most objects enter at #hypersonic speeds due to their #orbital trajectories" https://en.wikipedia.org/wiki/Atmospheric_entry
The #Soyuz craft is #designed to come down on #land 🌏. This is in contrast to #SpaceX #CrewDragon, which splash down in the ocean 🌊 https://en.wikipedia.org/wiki/Soyuz_(spacecraft)#Reentry_procedure
Manual steering, no cooling
0%
Smooth & precise, no spacesuit connection
77.8%
I need more info (please comment)
22.2%
Poll ended at .
Atmospheric entry - Wikipedia

Show threadSpaceflight 🚀Dec 23, 2022

Backup #Soyuz can’t get to #ISS before late 📆 February. #Roscosmos is "still unsure about whether the #damaged Soyuz can safely carry the crew back to #Earth". The next rotation of US personnel is set for a 📆 January 9 departure on a #Dragon #spacecraft. https://arstechnica.com/science/2022/12/iss-partners-modeling-soyuz-heat-flow-to-decide-if-its-safe-to-use
#CrewDragon has a capacity of seven 7️⃣ astronauts. Only four 4️⃣ #seats 💺 are used for #NASA missions. https://en.wikipedia.org/wiki/SpaceX_Dragon_2#Design

Picture : interior of the seven 7️⃣ #crew #capacity #spacecraft https://commons.wikimedia.org/wiki/File:Dragon_V2_unveiling,_looking_in_(KSC-2014-2729).jpg

#HumanSpaceflightSecurity

Backup Soyuz can’t get to ISS before late February

In the wake of a Soyuz coolant loss, NASA and Roscosmos still exploring options.

Ars Technica
Show threadTim Burnham 🇺🇸🇺🇦Dec 23, 2022
@spaceflight Are there any Dragons with 7 seats? Far as I'm aware, NASA changed the requirement to 4+storage long before any flight article was built. Haven't seen anything indicating that's a quick swap
Show threadSpaceflight 🚀Dec 23, 2022
@timrburnham Shouldn't be #rocketscience to fix some seats in the space where usually the luggage is ?
Show threadTim Burnham 🇺🇸🇺🇦Dec 23, 2022
@spaceflight Okay, probably true. But I'd prefer to see some disclaimer that this is #handwavium not a plan.
Show threadSpaceflight 🚀
@timrburnham Yes, #ANY expert statement from #NASA which isn't #lukewarm would be appreciated (and IMHO their #responsibility, can't believe there's no "plan B" for such a case)
Dec 23, 2022 at 3:01pmWeb