125

I believe it was John Young, during an Apollo 16 EVA fell to the lunar surface. Though awkward, he got up unassisted by attempting a series of what looks like push-ups until he was able to get himself to his knees. Then he had little difficulty standing up from resting on his knees. This YouTube clip shows how he did it. Apollo 16 astronaut falls and ...


73

According to Chris Hadfield's answer during his Reddit AMA: "We have a squishy thing inside we jam our nose into while we clear our ears — we scratch our nose on that." The "squishy thing" is formally known as a Valsalva device (used by both astronauts and divers for equalizing pressure in their sinuses. (Thanks to Organic Marble's comment). In addition, ...


57

Yes, this was the Waste Collection System (WCS) Positional Trainer, located in Building 5 at Johnson Space Center, adjacent to but not part of the Shuttle Mission Simulator Fixed and Motion Bases. The trainer was located in a small room with a code-locked door. The room contained a conventional toilet, a functional replica of the shuttle toilet, and the WCS ...


56

As always, the Apollo Lunar Surface Journal is a treasure trove of annotated examples. During the later (J) missions in particular, Ed Fendell, remotely operating the rover's TV camera, managed to capture a few for posterity. Falling forward (straight or a bit to one side) happened to several moon walkers, and getting up was not that difficult. Only Charlie ...


54

At least in the Shuttle program, I'm afraid the list of forbidden foods was almost infinitely long. Anything not officially tested and approved was forbidden. From the Space Shuttle Food System Summary (only covers the first 25 flights) here's the menu you got to choose from. Don't worry, it's only a couple of weeks at most. From eating this stuff in ...


48

Methods of cleaning Current washing technologies are mostly solvent based. Most normal "soiling" of clothing is a mixture of oils and salts (Both of which are products of sweat), and sloughed skin cells, often bound by those same oils. When one finds clothing irritable from extended wear, it's usually due to the effects of accumulated sweat and ...


40

The relevant law is Texas Administrative Code Rule §81.35 "Voting from Outer Space" and who's going to vote against that? It is a very small modification of Texas early voting law. (a) A person who meets the eligibility requirements of a voter under the Texas Election Code, Chapter 101, but who will be on a space flight during the early-voting ...


39

The water impact deceleration was short but it could be strong. Vertical speed with only two parachutes was 36 foot/sec or 11 m/s, horizontal wind speed during a storm could be more. Apollo 8 wind speed was 32 ft/s or 19 knots or 9.75 m/s. There were attenuator struts to reduce the landing shock. When the capsule hit the water, the attenuators extended and ...


38

There are in fact many foods astronauts are not allowed to eat. I'll be specifically talking about the ISS as they are the only ones currently in space. Bread: Astronauts are not allowed to eat bread because their crumbs can go into machine and equipment, and into astronauts' eyes. Alcohol: Russians were allowed to drink small quantities of alcohol (such ...


37

They keep the ISS at a pretty comfortable temperature and humidity level, so there's not much sweat accumulation except when they're working out. For that, they use towels. The sweat that they do produce that evaporates (along with the water vapor they exhale) gets collected as part of the water processing system and recycled into drinkable water.


37

The great majority of firework effects involve fuels and oxidizers incorporated together. The mortars and rockets would function fine to propel the shells, the burst charges would do their job, the stars would burn and glow. However, some effects do rely on an atmosphere: Obviously, you won't be hearing any reports or whistles. The combustion products will ...


35

I believe used fecal bags from the LM were normally supposed to be transferred back to the CSM and returned with the crew to Earth for analysis. In the Apollo 15 flight journal, in the annotation after 174:14:00, we have this: [As Apollo 15 disappears behind the Moon, Al switches on the Gamma-ray Spectrometer, X-ray Spectrometer and the Alpha Particle ...


33

Towels. Towels are used for this extensively. Hitchhiker's Guide wasn't making this part up, at least. Here's an 10 liter spill soaked up with towels this week. NASA Status report: https://blogs.nasa.gov/stationreport/2019/02/01/iss-daily-summary-report-2-01-2019/ Increasing levels of toilet humor: https://www.engadget.com/2019/02/06/iss-toilet-leak-...


31

Despite Charlie Duke's concern about it, given that the PLSS is massive, and would shift an astronaut's center of gravity far back from their natural distribution, it would be surprising if the designers hadn't anticipated the possibility of a fall. This view of the PLSS shows that the back side of the backpack is almost a single unbroken shell: ...


31

If any of the 12 had a bowel movement and then obeyed procedures, then yes there is poop on the moon My 30+ hour search of Apollo documentation did not reveal a direct answer either way. Perhaps the reason why NASA has never given a direct answer is because "leave poop on the moon" is not good public relations. However, multiple sources indicate detailed ...


24

From the NASA Astronaut Candidate Program brochure: Applicants should be aware that selection as an Graduation from the Astronaut Candidate Program will require successful completion of the following: International Space Station systems training, Extravehicular Activity skills training, Robotics skills training, Russian language training , and aircraft ...


23

From Retro Space Images's FaceBook post: Gene Cernan scratches the itch during an Apollo 17 training session at KSC.


22

I decided to search through NTRS and found this: http://hdl.handle.net/2060/20130012684 Waterless Clothes-Cleaning Machine This machine can be used wherever water is at a premium, or to minimize washing with water. Lyndon B. Johnson Space Center, Houston, Texas A waterless clothes-cleaning machine has been developed that removes loose particulates and ...


21

Many jurisdictions recognize weddings performed out-of-jurisdiction provided that those weddings are legal in the jurisdiction they're performed in. Unfortunately, there's no legal authority with jurisdiction over LEO -- it's kind of a legal gray area. Does any national law system provide a means for marriage officiants to lawfully perform a marriage at an ...


21

Consider this dramatization of Apollo 13 as an explanation of why it is probable we don't know what the most heated argument has ever been in space: Astronauts worry about how ground control's perception of their performance will affect their opportunities to fly again. Space agencies worry about how the public's perception ...


20

Several space selfies were made and chances are you already know the very first one Buzz Aldrin took of himself during Gemini 12. The cameras used are large-ish but imagine even holding a shoe box in front of you with thick gloves on: you're still able to point it at yourself in a distance suitable to make a photograph of yourself, provided the lens' focal ...


19

Why wasn't the Apollo spacecraft made so that the astronauts would simply lie on the bottom of the capsule during launch and reentry, without their legs up? They would just need to be tied to the bottom somehow (to a mattress perhaps). Actually, it sort of was, later. While the standard and ideal configuration had three seats suspended from shock absorbing ...


18

How about Willpower? Every Soldier learns to stand still at a parade or when they got to pledge loyalty. When I had my inauguration at the Austrian Military forces, we all had to stand still for quite some time (2-3 hours no nose or butt scratching) and it wasn't really a problem. Also, if you're concentrated on something serious (like doing work in a ...


17

According to an audio transcript of the Apollo 17 lunar mission, some astronauts had a Velcro patch somewhere on the inside of the helmet to scratch their nose on.


17

tl;dr: The only source found so far is an article that claims that Charlie Duke claims to have left urine on the Moon. No definitive report about fecal matter on the Moon, though. In total, it's claimed by several sources (probably all copying one article) that 96 bags of poop, urine and puke were left on its surface. By my own count from NASA's list (see ...


17

The youtube channel Cody's lab has tested some small fireworks in a vacuum chamber. Fireworks in vacuum, some pyrotechnics, and gunpowder. While in principle the firework carry the oxidizer and don't depend on air, in practice they did not work very well, as the gases escape too fast to sustain the combustion. So normal fireworks probably would not work very ...


16

Yes, they can and do watch TV shows on the ISS. From an interview with Scott Kelly aboard the ISS: Apart from posting pictures to Twitter and Instagram, Kelly also said he spends some of his limited downtime watching television. What exactly does a highly trained astronaut watch while orbiting the planet and contemplating the mysteries of life? Kelly said ...


16

Historically cups have not been used. For spaceflight, liquids have been stored in sealed bag-like containers and then drunk through a tube. These are somewhat similar to how many children's drinks are packaged and stored. (There was a link to a document showing some pictures of these sorts of containers and some food containers, but the link has gone dead....


16

I don't know exactly what Kelley is eating there, but brownies are on the ISS menu. Some foods can be eaten in their natural forms, such as brownies and fruit. A good moist brownie in bite-sized pieces has a manageable crumb coefficient.


16

As explained in video description of https://www.youtube.com/watch?v=9Emsf_udovU the voting is done electronically Most U.S. astronauts live in Houston. Texas law allows them to vote from space using a secure electronic ballot. Mission Control forwards the ballot to the space station and relays the completed ballot back to the county clerk.


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