Questions tagged [astronauts]

Questions regarding people present on spacecraft or space stations.

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6
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1answer
1k views

Why was Buzz Aldrin not Awarded the Congressional Space Medal of Honor? [closed]

According to the award's requirements, the Congressional Space Medal of Honor may be awarded to "any astronaut who, in the performance of his duties, has distinguished himself by exceptionally ...
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1answer
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How is ISS commander chosen?

I've been looking at the ISS's List of International Space Station expeditions, and I'm curious about how the commanders are chosen. I can't really find anything that stands out. Sometimes the ...
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1answer
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Oxygen toxicity vs Apollo mission preparation

In the article on Apollo command module design, I read: The cabin atmosphere at launch was changed to 60% oxygen and 40% nitrogen at sea-level pressure: 14.7 psi (10.1 N/cm2). During ascent the cabin ...
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NASA Astronaut Group 2 Press Conference

Is there footage of the NASA Astronaut Group 2 press conference online? I can watch the press conference for the Mercury astronauts here, but can't find Group 2 footage. I've seen snippets of the 1962 ...
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2answers
300 views

Cosmonauts and Astronauts

American, Japanese and ESA space travellers are astronauts, Russian or Soviet space travellers are cosmonauts. But are there exceptions from this? Americans visiting the ISS the last years have used ...
12
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1answer
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Do only Eagles walk on the moon?

Neil Armstrong was an Eagle Scout and the first person to walk on the moon. I have heard that everyone who has walked on the moon (through 2012), was an Eagle Scout. Is it true? If so other then ...
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How do astronauts overcome the boredom from “the daily routine”?

When I was flying in the plane the other day, I just noticed how many systems checks are completed before the plane even takes off. This makes sense, considering how many human lives depend on it. ...
17
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Would it be possible to get back to Earth from the ISS without any ground support?

In the TV show Last Man On Earth we follow a small group of immune survivors after an apocalyptic plague has essentially wiped out humanity. It is revealed that a single astronaut on the ISS has also ...
8
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2answers
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How do astronauts drink or eat in space?

As there is zero gravity in space, how do astronauts drink liquid from a container? Do they suck the liquid or is there any mechanism for that? Are there any changes in oesophagus?
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3answers
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Why did NASA send two astronauts to the moon instead of one?

I can think of a lot of good reasons for both arguments, and the Soviets made the opposite call for their lander, but what I'm interested in here is this: Given the mass penalty of another man (body ...
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How to be an astronaut? [duplicate]

I always wanted being an astronaut. I am now going to high school and want to major astronomy in university. The problem is I live in South Korea, not US. Can you guys tell me how a foreigner can be ...
28
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1answer
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What are the “unpleasant effects” of having a cold in microgravity?

I went to Technik Museum Speyer's space exhibition, which presented an excellent overview of the Apollo missions in a series of posters. The poster describing the Apollo 7 mission (an Earth orbit test ...
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How important is the size of an astronaut?

It seems to me that weight and size would be important in choosing spacefarers for many reasons; I came across this Wikipedia article where the Chinese astronauts (taikonauts) have to be between 50 ...
24
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2answers
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Will a Dragon v2 ever bring 7 astronauts to the ISS?

The Dragon v2 has 7 seats whereas the Soyuz only has 3. But the Soyuz uses all 3 seats for astronauts/cosmonauts to bring to the ISS. I suspect that Dragon v2 will bring 3-4 people to the ISS in one ...
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How do astronauts sleep in zero G?

Perhaps this is a strange question but I've always wondered how astronauts, particularly those aboard the ISS, sleep in zero G. Do they just hang out in "space" or do they have beds they strap ...
11
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2answers
319 views

How are the symptoms of long-term exposure to microgravity similar to those of bedridden patients?

A large number of symptoms of long duration stays in microgravity seem to be associated with the headward shift of organs and blood. I've always wondered, couldn't these symptoms also happen in ...
5
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1answer
198 views

ISS: Procedure in case of collision warning

In case of collision warning occurring to the ISS, if ISS can't be moved the procedure is to go to a Soyuz and wait. Can anyone gives details about the procedure? Is the Soyuz hermetically closed ...
13
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1answer
722 views

Are all crew on board a spacecraft trained to handle flight-systems?

Spaceflightnow.com writes to say (Edited to apply my highlights) "The improvements are rather significant," Kelly said in a NASA interview. "The displays that the cosmonauts and myself ...
10
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1answer
481 views

Plankton found outside the ISS, what is the substance in that claim?

There's been a news article around claiming that cosmonauts have found sea plankton on the outside of the international space station, for example here. Is there any substance to this claim? Have any ...
4
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1answer
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Is it possible to bring “nothing” back from space?

I think the ultimate souvenir would be not a moon rock or a martian, but space "nothing", but I wonder if this is physically possible... Can an astronaut go out to space with an open container, close ...
9
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1answer
931 views

Why do we differentiate between astronauts and cosmonauts?

And how tenable is this distinction now that a third space agency carries out manned flights (China), and others are poised to follow? I can think of no other profession/job title where this ...
7
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1answer
497 views

Is the use of “former” with astronauts really necessary?

When reading space exploration related articles, I often come across the use of "former" to classify astronaut's status. NASA even puts "former astronauts" as a separate classification on their pages, ...
4
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1answer
458 views

Do astronauts experience any genetic changes?

Staying in space is different from staying on Earth. When astronauts return to Earth from orbit, they usually suffer from muscle loss. Are there any genetic (abnormal) changes in their cells or in ...
8
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1answer
317 views

Does a persons weight effect their potential selection to be an astronaut?

Every extra bit of weight cost extra to send to orbit. Presumably it also impacts the possible payload. Assuming a generally healthy build, and otherwise physically able and fit person. In ...
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1answer
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Why did NASA discontinue use of the MMU?

One of the comments on this recent question touched on the use of the Manned Maneuvering Unit. It seemed like a good idea at the time: a system that would allow astronauts to do EVA without being ...
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Do astronauts on board the ISS have a backup spacesuit?

Do astronauts on the International Space Station have a backup spacesuit with them so that they could use it in case of any malfunction with one of the spacesuits? If so, how many spacesuits does ...
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If a human is being sent to space in a rocket, does the seating angle matter?

All manned spacecraft have had seats in an "on-back" angle for launch. What is the benefit of this seating position for a manned spacecraft launch?
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Do astronauts qualify to be calculated for hazardous duty in their pay?

Earlier today a grotesque incident occurred. My attempt to navigate to SOHO was redirected instead to this notice which wrote to say Due to the lapse in federal government funding, this website is ...
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416 views

What can an astronaut do better than the Curiosity rover? [closed]

Firstly, I want to say that I'd be the first person with their hand up when asked, "So who wants to go to space?". There's nothing I'd love more than to go. But from looking at the amount of ...
9
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1answer
227 views

How would one come up with an optimal team-size for a manned interplanetary mission?

How big would a manned ascent stage for Mars need to be? assumes 3 astronauts. That question appears to draw inspiration from the Apollo programme, and the Soyuz evolution. Part of the rationale ...
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2answers
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Is it possible to prevent muscular atrophy in microgravity with proper exercises?

Is it possible to prevent muscular atrophy in microgravity (space station, spacecraft etc.) by proper exercises? Urban dwellers here on Earth can train/develop arm muscles to the equivalent of their ...
9
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1answer
470 views

Has a non-space treaty citizen ever been in orbit?

The Outer Space Treaty of 1967, according to Wikipedia is ratified by any country with a chance of getting there - Article VI Makes each member country responsible for it's citizens actions. Article ...
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Do the majority of astronauts experience space sickness while adapting to micro-gravitational conditions?

Do the majority of astronauts (and cosmonauts) experience nausea, or symptoms of space sickness while adapting to micro-gravitational conditions? How severe are their symptoms and how much they vary ...
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What is the highest number of humans in space at the same time and what vessels were they on when it happened?

What is the highest number of human beings in space at the same time, and what vessels were they on when it happened?

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