Michael Collins, Apollo 11 astronaut, has died

Post by Breza » Fri, Apr 30, 2021, 11:41 AM UTC

herendin2 wrote: post #172

ud_0 wrote: post #170

Earlier quoted context omitted.

> - Help incapacitated astronaut into suit (temporarily removing own suit if necessary) > - Once both suited up, open airlock again to admit remaining astronaut These steps don't seem to be necessary. Since the CM can be opened from the inside towards the LM, the third astronaut could just wait in the LM and be let in that way. I think the only question is really how quickly can you repressurize the CM. It was basica…

Your insight suggests an even better solution: the spacewalking astronaut could open the internal hatch to the docked Lunar Module so its cabin air can instantly partially repressurize the Command Module

Post by Breza » Fri, Apr 30, 2021, 11:45 AM UTC

js2 wrote: post #143

hyperpallium2 wrote: post #130

Earlier quoted context omitted.

You can survive vaccuum for a brief period of time.

> Flight recorder data from the single cosmonaut outfitted with biomedical sensors showed cardiac arrest occurred within 40 seconds of pressure loss. […] The autopsies took place at Burdenko Military Hospital and found that the cause of death proper for the cosmonauts was hemorrhaging of the blood vessels in the brain, with lesser amounts of bleeding under their skin, in the inner ear, and in the nasal cavity, all of…

Post by Breza » Fri, Apr 30, 2021, 11:49 AM UTC

hcrisp wrote: post #178

hcrisp wrote: post #113

Earlier quoted context omitted.

To clarify, they were transearth EVAs, so they were not even during orbit around the moon. I recall seeing some upscaled videos on youtube of this which looked pretty unearthly. https://www.history.nasa.gov/SP-4029/Apollo_18-30_Extravehic...

Also, in the article linked below, Al Worden described his transearth EVA on Apollo 15 in which he could see both the entirety of the earth and moon simultaneously in his field of vision (the only person to do so in history?). He regrets not having a camera, but he later had an artist recreate the memorable view of the moon behind Jim Irwin (included in the article). https://www.smithsonianmag.com/smithsonian-institu…

Post by Breza » Fri, Apr 30, 2021, 11:53 AM UTC

raverbashing wrote: post #24

caution wrote: post #2

Statements on Passing of Michael Collins. https://www.nasa.gov/press-release/statements-on-passing-of-...

"As pilot of the Apollo 11 command module – some called him ‘the loneliest man in history’ – while his colleagues walked on the Moon for the first time, he helped our nation achieve a defining milestone." In a way it was a bit disappointing. But it was also a big, huge responsibility. Remember, if something went wrong with the Eagle, he was going to return alone to Earth.

Post by Stratoscope » Fri, Apr 30, 2021, 11:55 AM UTC

Breza wrote: post #180

Stratoscope wrote: post #111

Earlier quoted context omitted.

Found it! https://spaceflightblunders.wordpress.com/2017/04/07/lunar-o... From the article, I was wrong about not knowing whether the CMP was alive: "Unless there was a very serious issue with the CM’s communications systems, NASA would know of the CMP’s fate immediately. Every astronaut wears biomedical sensors at all times, as part of their constant-wear garment. This telemetry is sent to the flight surgeon." More…

Similarly, Collins wrote a memo to the astronaut corps explaining that on the Mercury missions, if someone became incapacitated during EVA, they'd have to cut their life support cable and close the hatch and come home alone.