Questions tagged [astronauts]

Questions regarding people present on spacecraft or space stations.

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6
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1answer
142 views

Taking custom software or hardware to the ISS

Before departing to the ISS, astronauts are allowed to pack some personal objects to be taken with them (see other question about packing). What if an astronaut had some self-written software (for ...
11
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3answers
2k views

Did/does the US use statute or nautical miles to decide who gets astronaut wings?

As mentioned in a few questions and answers (1,2,3,4), US astronauts receive their astronaut wings upon crossing the 50 mile altitude mark. Are these statute miles (1609.344 m, 5280 ft) or nautical ...
30
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1answer
3k views

How many astronauts have reported an alien encounter of some kind?

This question will be controversial, so I want to start out by saying that I am not advocating any sort of conspiracy. I'm merely acknolwedging the fact that there are numerous claims that some ...
5
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2answers
227 views

Are deployed astronauts (e.g. on their way to or already on ISS) notified if something of importance happens to one of their family members?

The question is sparked in part by the "America's favorite dads in space" narrative which accompanies the recent Demo-2 mission, involving astronauts Rob Behnken and Douglas Hurley, as well as their ...
25
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2answers
4k views

How many people have witnessed Earthrise?

How many astronauts orbited or went around the moon and saw Earthrise? Am I correct in the conclusion that nine missions orbited the moon or used a free-return trajectory around the moon, Apollos 8, ...
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3answers
1k views

Could the Apollo astronauts distinguish Earth's continents and oceans from the moon?

This article "Earthshine Reflects Earth's Oceans And Continents From The Dark Side Of The Moon" indicates that the difference in reflection of light from the Earth’s land masses and oceans can be seen ...
8
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1answer
1k views

Why might an astronaut wear a wristwatch very loose on board the ISS?

In this video on board the ISS, CSA Astronaut Chris Hadfield wears his watch very loosely--so that it continually bumps against different sides of his arm. I imagine this might be mildly irritating or ...
23
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3answers
7k views

If an astronaut needs to go to the toilet during launch, what can/need they do?

It is clear everyone that going to space is a big deal for almost everyone, and it is a known fact to me that whenever I do something important for myself, pretty much everything goes out of my body ...
5
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1answer
477 views

What is astronaut Alexander Gerst signaling with this K-shaped hand signal?

In this AP/WISN news item Air leak at International Space Station temporarily plugged by a thumb they show a file photo of German astronaut Alexander Gerst at the Baikonur cosmodrome, making what ...
14
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3answers
1k views

How many seconds of near-zero gravity are practical with a Reduced Gravity Aircraft?

When I saw "50 seconds of weightlessness" (see quote below) I made a very rough estimate based on 45 degrees nose-up to 45 degrees nose-down Reduced Gravity Flight centered at about 35,000 feet where ...
17
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2answers
2k views

What typically gets sent to the ISS?

I'm working on a project that aims to understand what is needed to live in space. I understand the basic concepts and vital items needed, but I'd love to see a direct example of what is already being ...
11
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1answer
333 views

What is the backstory of this silly picture of the Apollo 1 crew?

The photograph below shows the first Apollo crew of Gus Grissom, Ed White, and Roger Chaffee wearing silly hats and acting less seriously than typical NASA publicity photos. All three were later ...
51
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2answers
9k views

Is the Skylab 4 mutiny just a myth?

Within the space history community, it is commonly known [citation needed] that the rookie Skylab 4 crew was over-aggressively scheduled by ground control. As they fell further & further behind ...
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3answers
477 views

How would travel to Mars without artificial gravity affect a crew's initial experience in Mars gravity?

This answer and the linked YouTube video discuss some difficulties with the experience of artificial "gravity" generated by small rotating craft (like one that could be launched to Mars in the near ...
15
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1answer
2k views

How many astronauts have had spiritual experiences while in space?

In the video Overview 5 astronauts talk about having powerful spiritual experiences in space, and their descriptions match enlightenment experiences. This strikes me as rather more important than you'...
12
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1answer
341 views

What is this device/object that the SpaceX astronauts are holding?

Watching the SpaceX Demo-2 launch preparation livestream, I saw both Bob and Doug using some sort of little gadget. It looks like a chunky cell phone, or a flat gopro. It appears to have an LCD on the ...
2
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1answer
181 views

Once in Earth orbit, what is the strongest propulsive acceleration an astronaut has experienced?

Early crewed launches subjected astronauts to large propulsive acceleration, usually right at the end of a stage before shut down and separation when the mass for that stage is minimum. (see ...
4
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0answers
94 views

What do astronauts do to pass time on the way to the ISS?

After watching those astronauts wait in the dragon capsule for so long on Tuesday, I started to wonder what do they do on the long trip to the space station? Can they get out of their seats? Are there ...
5
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1answer
481 views

What are the appropriate phrases to use to wish an astronaut safe travels?

When you want to wish an astronaut "safe travels", what particular phrases are commonly used? I'm looking for historical phrases as well as more modern. Although I'm more interested in English ...
10
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2answers
2k views

What do astronauts eat for pre-flight breakfast?

I’m currently reading W. David Wood’s rather excellent “How Apollo Flew To The Moon” which details the technological development and execution in reaching the moon with the Apollo program. Part of ...
42
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1answer
6k views

What would happen if a mutiny occurred on the International Space Station?

Historically, mutiny has often occurred in close-quarter situations. While the International Space Station (ISS) is not a military operation, the term mutiny is often used to refer any sort of ...
2
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1answer
205 views

What's the longest time that an astronaut remained in free fall?

After watching the video below (found here and here) I am reminded of the series of possibly less than 100% serious questions here about being weightless in the middle of a large volume and ...
6
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3answers
166 views

Has anyone ever flown to space in a vehicle they helped build?

I'm sure people who build airplanes have had a chance to fly in the planes they build, and I'm confident that people who build submarines may get a chance to travel in them too. But I am under the ...
8
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2answers
1k views

Ken Mattingly was also a bachelor, so why did everyone give Jack Swigert a hard time?

The Apollo 13 Flight Journal notes that Swigert's bachelor status was near legendary, even in contemporary times. The prime CMP Ken Mattingly was single as well, incidentally, but did not enjoy ...
43
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1answer
5k views

When did Jack Swigert realize that he forgot to file his taxes?

As portrayed in the film Apollo 13, astronaut Jack Swigert forgot to file his taxes: JACK SWIGERT: Well uh, if anyone from the IRS is watching, I forgot to file my 1040 return and I meant to do ...
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2answers
1k views

What would happen if an Apollo astronaut landed on Pluto?

Pluto seems to be composed of Nitrogen and other ices that would be fluid or gaseous at higher temperatures. So what would happen if an astronaut using an Apollo era space-suit (crucially with that ...
7
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1answer
204 views

Were flown lunar rover miniature license plates approved for the Apollo-15 flight?

A page in Space Flown Artifacts describes miniature lunar rover license plates that Dave Scott carried to the moon and back: These miniature license plates were manufactured by Boeing (makers of ...
13
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2answers
954 views

How long were the Apollo astronauts allowed to breathe 100% oxygen at 1 atmosphere continuously?

This answer explains that from the time they suited up "in the Suit Lab before launch" until the time the capsule started depressurizing during ascent, the Apollo astronauts were breathing 100% oxygen ...
28
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1answer
4k views

Did the astronauts seated on the space shuttle mid-deck have responsibilities during reentry and landing?

Space Shuttle mid-deck, it doesn't look like there is much for the astronauts there to do. I recognize this photo was not taken during a mission. I couldn't find an image of the mid-deck during ...
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0answers
100 views

Is it possible for a petroleum engineering graduate to become an astronaut? If not, why so? If I can, what should I learn or do then? [closed]

So the question pretty much says it all. I would really appreciate it if you guys can give some detailed explanations here for why I might or might not be able to become an astronaut. And also, feel ...
2
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1answer
172 views

How to become an astronaut?

I am a pure/applied mathematics student at Tehran University. About 2 or 3 years later I will get my bachelor's degree and start studying master's in applied math or theoretical physics. And maybe I ...
3
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1answer
174 views

Loose items in Apollo CM during reentry?

Would there have been any danger to the astronauts or the equipment if a soft item, like a crumpled up napkin or tissue, was loose during the Apollo CM reentry, or did everything have to be secured?
2
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2answers
7k views

Does the speed of ISS slow down at the time of a spacewalk or does it become stationary?

The International Space Station (ISS) is orbiting at nearly 7.66 km/s. At such high speeds, how do astronauts perform tasks outside the ISS? Or is it all relative like astronauts are having same speed ...
4
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1answer
270 views

When during the flights did astronauts use the Valsalva device?

A spongy material is installed to the inside helmets called the Valsalva device (top right in this image) allow astronauts to do the Valsalva maneuver to relieve pressure on their eardrums when there ...
20
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1answer
3k views

Who were the youngest and oldest persons in space?

In recent years there has been much talk about the possibility of establishing a permanent space colony somewhere in the solar system. If that happens it's plausible that within the next century ...
2
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1answer
122 views

Is there an alternate term to “fired” for the Reaction Control System?

Do the astronauts use any word, other than "fired" when referring to the use of the Reaction Control System for attitude control or translation?
1
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1answer
87 views

Astronauts and Time Dilation

Do astronauts experience any effects of time dilation? Based on my (very limited) understanding, both a change in speed and in gravity should have an effect - and astronauts experience both. The ...
9
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1answer
618 views

Can you enjoy a cold carbonated drink in space?

I will grant that launching a can of soda pop, or beer into space would be very expensive. Alternately it is not unreasonable to make it in the space station, carbonated drink makers are easily ...
6
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1answer
398 views

Do astronauts develop the ability to regularly place an object at rest inside the ISS after extended periods in microgravity?

This image from the ESA prompted the question why the fruits at the bottom left were not floating. An online response claimed after an extended time on the ISS astronauts get used to placing ...
5
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1answer
135 views

What does S represent in Chris Hadfield's D = ½ ρ v² S?

Retired test pilot, CSA astronaut and ISS Commander Chris Hadfield's new Master Class advertisement video Chris Hadfield Teaches Space Exploration - Official Trailer - MasterClass is heavily edited ...
4
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1answer
261 views

Is retired astronaut Scott Kelly now the same height as his brother?

In WIRED's new video Astrophysicist Explains One Concept in 5 Levels of Difficulty | WIRED "Astrophysicist Janna Levin, PhD, is asked to explain the concept of gravity to 5 different people; a child, ...
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0answers
58 views

What are current epidemiologic standards for space?

In the recent Mars series by National Geographic I've seen that an astronaut dies from a brain tumor because it "was not part of screening". Now could this be real and what are health standards for ...
4
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1answer
153 views

Exactly how does one lope on the Moon?

This answer includes several quotes from apollo astronauts that have walked on the moon. They describe a form of bipedal locomotion they call loping. Question: Exactly how does one lope on the Moon? ...
3
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1answer
111 views

What biomedical data indicated Apollo astronauts were sleeping?

What particular biomedical data did NASA use to determine if an Apollo astronaut was awake or asleep? From the APOLLO 11 MISSION COMMENTARY, page 72/1 "Our Flight Surgeon reported a short while ago ...
5
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3answers
15k views

How are astronauts protected from radiation in a spacecraft?

How are astronauts protected from radiation (alpha, beta, gamma rays, uv rays) by their spacecraft? Is the spacecraft built in a special material?
3
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1answer
130 views

How often did Apollo astronauts wear red helmets?

Images of NAsA astronaut David R. Scott performing a spacewalk during Apollo 9 show a red helmet. When did NASA's use of red-colored helmets begin, and when did it end, and was there a special name ...
92
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1answer
17k views

Who was the first human to sleep - perchance to dream - on the Moon?

Incidentally I don't mean "on the lunar surface, asleep laying on the surface of the moon" :) So (A) who (if anyone) was the first human to actually be asleep (that is to say, presumably inside the ...
30
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4answers
11k views

Did any astronauts on a mission complain about waking up?

A bit of a strange question that comes from "The Martian" - in Chapter 12 is a sequence about the entire crew waking up and some complaining about it. I would expect that on a 31 day mission every ...
5
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1answer
395 views

What is the procedure for scheduling on the ISS if an astronaut oversleeps?

From the accepted answer to this question there have been times when astronauts have overslept. The morning started disastrously. I slept through two alarms, one set for 0600 and another a half-...
38
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3answers
8k views

Are there any vegetarian astronauts?

Following this question and other food-related questions, including on Quora, I failed to see mention of a meal without meat or fish. I suppose: It is technically possible to have healthy vegetarian ...

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