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Questions tagged [crewed-spaceflight]

Crewed spaceflight (also referred to as human spaceflight or manned spaceflight) is space travel with a crew aboard the spacecraft. When a spacecraft is crewed, it can be operated directly, as opposed to being remotely operated or autonomous.

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What set of units does the Orion capsule cockpit instrumention use?

Shuttle was English, ISS is metric. What's Orion? For example: What units are inertial velocity displayed in?
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How was Skylab's orbit inclination chosen?

As referenced in this question, there were a number of early spaceflight missions at higher inclination than may be expected (given limited payload capability, higher inclination further limits ...
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Why Orion can't be used to service JWST?

Hubble Space Telescope is a marvel of astronomical tools - particularly judging by how much it moved the science. It took a lot of fixes along the way, which certainly prolonged its useful life. Its ...
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How to build a space catapult large enough to shoot a one hundered thousand ton spaceship in to low orbit?

I assume calculations start with the payload weight. A massive foundation would be needed lots of concrete and rebar meters thick. Also a harmonically sealed tunnel a thousand miles long filled with ...
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How effective is the Orion radiation protection plan?

This article gives a basic overview of the procedure for astronauts on deep space missions who need to take shelter from energetic events such as solar flares. The shelter area strongly resembles a ...
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Would high altitude native populations make better astronauts for a Mars mission?

High altitude populations in Tibet, the Andes, and Ethiopia have genetic adaptations that allow them to better handle low oxygen levels. They are also used to colder and drier climates. And lastly ...
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Fuel vs food on the trip to Mars?

How much food for each person is need and fuel per various engine to go to Mars on the current 9-month trip there then 3 months on Mars and the 9 months back? Can time be saved on the trip to and from ...
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Instead of approaching Mars from behind can we approach Mars from the front of its orbital path? [closed]

Nine months is what google maps said to get to Mars. I would like to know if fuel was no expense how long could we get to Mars other than the method below? Is the 9 months and the method just what our ...
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Could the Saturn V actually have launched astronauts around Venus?

One of the more interesting proposed uses of a Saturn V was to launch a manned flyby of Venus. Some of the cargo would have been stored inside the tank of the upper stage, which would be retained ...
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What is the orbital boost acceleration of the ISS?

How much acceleration does the International Space Station experience during its orbital adjustment boosts? How much thrust and for how long? Bonus question: what is the highest acceleration that the ...
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why do astronauts in the ISS still use wired microphones?

While I watched the DM-1 hatch opening, I noticed that astronauts use the wired microphone to talk to Huston. It was particularly strange seeing that even because during hatch opening, they were ...
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Pre-launch TLEs for NASA launches

I was curious if the United States is on the verge of launching maned flights to the ISS, will anyone release Pre-Launch TLE data like was done back when the shuttle was flying.
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Titan vs Mars for colonization

This question is along the same vein as Venus vs Mars for colonization but without the person at the table. Is Mars better than Titan which to me seems a more realistic option for colonization? With ...
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Creating your own artificial gravity by running. (Part 1 - the basic idea)

The main motivation for artificial gravity is the astronauts' health Usually artificial gravity is supposed to work by rotating the spacecraft. See diagram A. Wouldn't it be much simpler to simply ...
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How similar to a crewed flight will SpaceX Demo Mission 1 be?

With the upcoming premiere of the Dragon 2 in SpaceX's DM1 launch, I was wondering how similar it will be to a mission with actual astronauts. What I mean by this is things like: Will the launch ...
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Are there any photographs of the frozen waste water after a urine dump in space?

Astronaut Mike Massimino talks about watching the urine freeze outside of the spacecraft. He said they would all watch, it was something beautiful to see. Are there any photographs of this, or has ...
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Did Apollo's velocity slow down after TLI due to Earth's gravity?

I assume Apollo's velocity slowed down after it left Earth orbit, for how long was it decelerating. Did it start accelerating as it approached the Moon. What was the rate of deceleration due to ...
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At what time in the Apollo 14 mission did the maneuver shown in this image happen, and what exactly was happening?

In a search for information for this answer I received this google books link of Comment: The Relevance of Space, by Arthur Kantrowitz, Bulletin of the Atomic Scientists 197, 4 April 1971, pp 32-33. ...
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What was the view from the Apollo spacecraft while travelling to the moon?

From what I read on the internet, I took around 3 days for Apollo 11 to get to the Moon. I'm curious what was the view from the windows of the spacecraft during the journey. What did the astronauts ...
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Is the ISS in danger of the outer radiation belt?

Is the ISS in danger of the outer radiation belt? I know that the ISS is in the low earth orbit and that it briefly passes through the base of the outer RB, but it is actually in danger? How does the ...
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Space Travel Advanced Recon [closed]

Could a network of probes be sent ahead of a mother ship to form a grid to lay a path for travel inside the solar system? After what certain speed anything larger then a stationary pebble could be ...
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Will there be man-rated DreamChasers?

The Sierra Nevada DreamChaser was a contender for the commercial crew program, but lost out when NASA chose both Boeing and SpaceX for their program. However, they kept developing the craft for the ...
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How much less fuel do rockets burn with higher G force?

How does G force at launch differ between spacecraft when it comes to efficiency between crewed and uncrewed space flight? Does less time in the atmosphere equate to a savings in fuel for an ...
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Does a one way mission to Mars make more economic and scientific sense than a two way mission?

A one way mission skips any return rocket needs, extends the research mission by decades and slowly builds up the infrastructure on the surface. The longer mission on Mars would require regular ...
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Manned entry to Mars

Did Insight have a ballistic entry? If so, does NASA plan a ballistic or skip-glide entry for manned missions to Mars?
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With six spacecraft currently docked at the ISS, how could Santa (or anyone else) deliver presents?

This ISS tweet says: Three days after launching from Florida the @SpaceX #Dragon cargo craft was installed to the Harmony module at 10:36 a.m. EST. There are now six spaceships parked at the ...
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What are the advantages to sending a person vs robotics to Mars?

Why is it needed to send a person to Mars one day when we have Rovers? What not obvious advantages do humans have in space exploration over Robotics and vise versa?
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Have there ever been people trapped in a shut down spacecraft?

I was reading some one-line sad stories and came across this one: Goodbye mission control, thanks for trying. So I was wondering if there have ever been people trapped in a spacecraft without a ...
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How easy would opening an Apollo capsule following dry landing be?

To help frame the problem, I have written the following scenario: It's December 19, 1972 and the Apollo 17 has returned to Earth, but something went wrong and they landed in the middle of the Outback....
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With current or near-future projectable technology, how long would it take a ship to fly from Earth to a theoretical Earth-Sun L4 or L5 space station

Lets assume there's a space station already built, so this would be a flight off earth, brief acceleration, coasting most of the way, brief deceleration and connect with the station. I'm assuming ...
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Can carbon dioxide be distilled from a Helium/Oxygen atmosphere by using natural refrigeration?

A simple air compressor compress carbon dioxide/water saturated helium/oxygen air in a tank to liquefy water from the air by pressure. Abstract the water, then refrigerate the carbon dioxide/helium/...
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What immunizations (vaccines) are required for astronauts?

Astronauts are often required to get immunizations (incorrectly called vaccines). Which ones are required?
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Have “QR” or other 2D barcodes been used in spaceflight?

Wikipedia: QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan. ...
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Did “Where Is Everybody?” have any influence on multi-person crews?

The pilot episode of The Twilight Zone entitled "Where Is Everybody?" portrays a lone astronaut going crazy due to long-term isolation and lonliness. At the end of the episode, the general in charge ...
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What if an ISS astronaut refused to leave the space station? [duplicate]

When a mission to the ISS ends and the astronauts/cosmonauts shall leave the ISS with the Soyuz/Dragon spacecraft, what if an astronaut refuses to enter the Soyuz? What if he/she wants to remain on ...
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How closely can ground control monitor ISS astronauts?

How closely can ground control monitor astronauts aboard the ISS. Are there cameras or microphones that the ground can use to see and hear what's happening, or are they reliant on the crew to relay ...
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What would astronauts see if they were in an Earth Moon L1 Lissajous orbit?

Would they be moving fast enough that the change of their position relative to the Earth and the Moon would be perceptible? Or would that change be too slow to notice moment by moment? I take it as ...
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Perspective on “light years”

If Alpha Centauri (approx 4.5 light years) is our nearest star, at the highest possible speed for human spacecraft, how long would it take to travel there? People talk about interstellar travel. ...
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Is there an onboard video of the Soyuz MS 10 launch?

Does anyone know a link to the video obtained from the Soyuz "outboard" camera showing the separation of the side boosters of the Soyuz MS10 launch?
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1answer
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Acceleration due to uncontrolled rotation of Gemini 8

Having just watched the movie "First Man," I'm interested in analyzing the Gemini 8 malfunction in physics terms and possibly turning it into a homework problem or an example for my physics classes. I ...
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What are the reasons Soyuz's lifespan in orbit is limited?

Following the recent Soyuz failure news, I found out that the currently docked Soyuz expires in the foreseeable future, leaving the crew with no means to return back to Earth. What are the reasons ...
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Can crewed rocket programs be accelerated in light of the Soyuz failure?

This morning a crewed Soyuz booster failed, causing the crew to return to Earth, as the capsule was not in orbit yet. With this being the second failure of a Soyuz rocket in two years (a Dec 2016 ...
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Fuel carried by current Crew Dragon

How much fuel weight will the current Crew Dragon carry? Will it be just enough for launch abort, or the full load (over 3000 lbs) needed for propulsive landing as a back-up to the parachutes? I ...
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1answer
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Is it possible to build hard shell suit with tighter fit to the body

The only hard shell space suit I know of, NASA''s AX-5, was big, bulbous, and seems to be not very comfortable, although offering zero pre breathing, when entering the suit. What I am thinking, is if ...
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Vented interstage for the final stage of Saturn V

As we can see in the figure below, the interstage between the escape module and the command module is vented. Why did they go for vented interstage? Wouldn't it increases the serodynamic loadings and ...
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Will SpaceX's moon mission carry any engineers to fix the craft or will the artists be trained for these operations?

In the live stream, Elon Musk mentioned that a dozen would be the ideal size for a mission. Could have easily been an off the cuff range, but would allow for some engineers if something goes wrong. ...
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Could the Space Shuttle orbiter have used the Energia HLLV (used by Buran)?

I would like to know if the Space Shuttle orbiters would have been capable of utilizing the Energia Heavy Lift Launch Vehicle (HLLV) used by the Buran instead of the External tank/SRB configuration. ...
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Why Spacex Lunar Mission date postponed?

Previously SpaceX Lunar mission date was 2022, but it is mentioned in the wiki that it is no earlier than 2023. Why the date has been postponed?
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How long will it take to develop the technologies necessary for a Mars Mission? [closed]

As I'm doing the math of when we can expect to actually see a Mars mission, I'm finding it difficult to believe we can get there until we complete several additional programs to prove technologies we'...
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Could electric fans lift a rocket strait up like a multi propeller drone? [closed]

Could electric fans like the ones below lift a rocket? What is the amount of electricity needed to lift a interplanetary rocket? Could a nuclear power plant provide enough electricity? https://en....