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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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Would Luna 15 have been visible to any of the members of the Apollo 11 crew?

According to Wikipedia, Luna 15 crashed a few hours before Eagle lifted off from the moon, and since it crashed North-east of the landing site, it must have overflown them. Would any of the crew have ...
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Brachistochrone variation for Earth-to-Mars Orbit

Wouldn't a Brachistochrone curve to Mars orbit be a much faster and more efficient way to send personnel and equipment to mars as compared to the Hohmann transfer if we used an Ion engine? The below ...
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Did any astronaut take a Bible into space?

I am wondering if any astronauts took a copy of the Holy Bible into space. I know the crew of Apollo 8 read part of Genesis 1 in space, but I am wondering if anyone took a full Holy Bible into space.
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How big is a human's space bubble?

How big is a human's (space) bubble - in other words: how far could we (as mankind) transport a human being from Earth in such a way that the being would be still alive? (Let's not consider returning.)...
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What can the KSP game actually teach about spaceflight and orbital mechanics, and what are its limitations?

I have seen at least several different users mention that they've found Kerbal Space Program helpful to understand issues of spaceflight and orbital mechanics. According to Wikipedia: While the ...
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Have any space stations experienced a total solar eclipse?

Have any space stations experienced a total solar eclipse [edit: with the moon blocking out the sun, and seen from the vicinity of the Earth *sigh*]? Otherwise, will any manned satellites pass through ...
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Could riding a coronal mass ejection to avoid radiation be viable?

The recent article in The Register Ten spacecraft – from Venus Express to Voyager 2 – all tracked same solar flare talks about ten spacecraft noticing the same coronal mass ejection (CME) as it ...
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Are there any major flaws with the Mars Architecture used in the Martian?

In the movie The Martian, a giant spacecraft known as the Hermes is used to ferry astronauts from Earth orbit to Mars' orbit. Once in Mars orbit, the astronauts take a Mars descent vehicle to a pre-...
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What's the purpose of a manned flyby/orbit of Mars/Venus?

Many current outlines for trips to mars, such as Mars Base Camp, propose a large ship capable of transporting astronauts to Mars. However this plan only proposes to send humans to Mars' orbit and not ...
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Why are launch escape towers jettisoned early?

Why are launch escape towers usually jettisoned fairly early in the flight? What if a problem went wrong during an upper stage burn and the escape tower had already been jettisoned? I know that ...
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What is the blue box that the Exp. 53 Astronuats/Cosmonauts carried with them?

Looking at a video from Roscosmos on instagram, Exp. 52 Cosmonaut Sergey Ryazansky carried a blue box with him during his walk to the Soyuz rocket. Upon looking at more videos of Astronauts boarding ...
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What are the Grid fins on the Soyuz escape system used for?

Why does the crewed version of the Soyuz rocket use grid fins on its launch escape system? It seems like extra weight to carry along during a portion of the flight. Here's a rendering of the upper ...
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Has a spacecraft ever docked with the same space station twice in one mission?

Has a spacecraft ever docked with the same space station twice in one mission? This is the "corollary" to the question How many times has a spacecraft docked with two or more different space stations ...
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How many times has a spacecraft docked with two or more different space stations during a single mission?

According to this answer, Columbia is the only Space Shuttle not to have docked with more than one space station. For the other shuttles, I think at least most of the time they only docked with one ...
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Apollo era remote control of vehicle

I am wondering what kind of ability NASA had during the Gemini or Apollo program era to control the vehicle from the ground. From reading some capcom transcripts and looking through some random ...
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How thick must a shield be to be better than no shield at all?

Below an answer to a recent question about shielding against radiation on a trip to Mars, there was this comment from dubu (emphasis mine): [..] For high-energy particles entering dense matter, ...
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Why can't we use the same radiation shielding in Mars that we used when going to the moon?

Note that this is somewhat related to this question but here I am specifically asking about the suitability of using existing shielding for Mars travel. This is about this article and video titled "...
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Landing Hazards on Pluto

This is for a fiction project I'm working on. Assuming it becomes possible to someday land on Pluto, what hazards might be encountered given what we've learned about its surface makeup?
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How would the Heimlich maneuver or CPR be done in weightlessness?

Abdominal Thrusts (the "Heimlich maneuver") and Cardiopulmonary Resuscitation (CPR) are life-saving first aid procedures that involve carefully targeted manual forcing of a victims body in order to ...
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How much manual flying is done in a modern manned spacecraft?

Considering we live in an age of unmanned spacecrafts, with computers more than capable of managing everything from attitude control, burns, to docking and insanely precise powered landings; how much ...
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Doctor and EVA specialist — good idea? [closed]

The book "The Martian" describes a six-people manned mission to Mars. One of the astronauts is both the ship's primary medical doctor/surgeon and primary extravehicular activity specialist. Is such a ...
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How many times were there thirteen people inside the ISS? Is it hard on the station?

I just saw this photo in @SF.'s answer It is ISS023-E-023513 STS-131 and Expedition 23. The full caption is below. Are there really 13 people on the ISS at one time? Is STS-131 the only shuttle ...
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Why do ISS crew members often cross their arms?

I am watching live stream from ISS to follow the return of two ISS crew members, Thomas Pesquet and Oleg Novitskiy. At several moments, they crossed their arms in a not really natural way: Why do ...
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Could Dragon 1.0 be used as an emergency Earth return vehicle

In a completely hypothetical scenario, say both of the Soyuz vehicles docked to the station were damaged/destroyed, but there was a Dragon 1.0 on the station left intact. Although i don't believe it ...
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Could the Apollo LM abort mode be engaged after touchdown? What would have happened if it was?

The Lunar Module had an abort mode where the crew basically just had to push the ABORT button on the control panel, and the ascent stage would detach from the descent stage, followed by the ascent ...
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Do we still have all the blueprints to go to the Moon? [duplicate]

The answer to Do we still have all the equipment to go back to the moon? is an unambiguous "no". Most of the equipment went to museums or got scrapped. But do we still have all the know-how? Say, a ...
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Do we still have all the equipment to go back to the moon?

That is, does NASA still have all the training equipment, computers and so forth that would be required for a new moon program, or would all of that have to be rebuilt as well as building new rockets?
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If the astronauts on Apollo 11 had landed safely on the moon but could not take off, would there have been a rescue mission?

Say they landed on the moon but discovered the ship was damaged during the landing and they could not launch again. What would have been the plan? Would another crew have been sent to rescue them? ...
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Real time communications in space

Today we use audio and video communications (using UDP protocol) over IP networks (VoIP) for communicating (Skype, Whatsapp, FB messenger). This works fine on planet Earth (although there are various ...
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Is there a mockup of the ISS on the ground?

Is there a replica of the interior of the space station on the ground? For training astronauts and to try out equipment installations.
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Are there studies on human Mars missions available?

Given the poor track record so far for successful unmanned Mars missions (26/55, less than half), and the fact that a manned mission would have to use yet another descent method, let alone a whole lot ...
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Why has the ISS not been left unmanned?

I found this question, and I was wondering why the ISS is constantly manned (Except for some hours during particular situations). Is that a technical problem? Is it to guarantee safety? Or just ...
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How will astronauts live in Spacex's red dragon?

If SpaceX's Red Dragon will ever bring astronauts to the red planet, would it need to connect to a deep space habitat? I'm asking because the red dragon seems to be too small for a seven or eight ...
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How is a Deep Space Gateway station in Lunar orbit helpful for going to Mars?

I'm reading that NASA plans to use a Deep Space Gateway, a space station in some kind of Lunar or Lagrange orbit, in order to send astronauts to Mars. How does such a "gateway" assist human ...
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How high *could* a glider reach, to catch a skyhook reaching down from orbit? [closed]

At the beginning of the third part of Seveneves Neal Stephenson describes how the protagonist Kath Two travels from the Earth's surface into the orbit with the aid of a Skyhook-named system. The route ...
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1answer
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Has every passenger been an astronaut? Will they be in the future?

There have been a number of paying passengers on orbital missions in the past, and it is likely there will be many, many more in the future, and not only on orbital missions. I'm thinking that ...
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Why was this Saturn rocket elevated for launch?

This is an image of a Saturn on the launch pad on July 20th 1973 It appears to be resting on an elevated platform that raises it significantly off the ground. Why was this done? It seems like a lot ...
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Is NASA doing research on “mini-magnetospheres” to protect crew from radiation in space?

The Phys.org article NASA proposes a magnetic shield to protect Mars' atmosphere says: ...Dr. Jim Green – the Director of NASA's Planetary Science Division – and a panel of researchers presented an ...
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Are crewed capsules equiped to land pretty much anywhere in the world?

Based on this question it sounds like if something goes wrong it's pretty easy for a crewed capsule reentering from space to go way off target. Does that mean that the capsules are equipped to land ...
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What crewed space flight landed farthest off-target?

Astronauts are usually prepared to land at a random place on Earth; in case the planned reentry burn fails, but by other means they achieve reentry trajectory, the orbital motion will pretty much ...
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Were there any manned missions into orbit that went not to the ISS since the end of the Shuttle?

I know the Chinese did some to their own space station, but were there missions like the repair or retrieve missions the Space Shuttle did with for example the Hubble telescope?
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Where can I find flight manuals (not familiarization manuals) from Project Gemini?

I have heard about the Project Gemini flight manuals, but have not been able to locate a copy. Perhaps someone here knows if these exist in some form? I am NOT talking about the Familiarization manual,...
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Lowest amount of people on the ISS at one time

I understand that the ISS is somewhat capable of unmanned control unless a catastrophic error occurs with core instruments, however when the crew is onboard, there is usually a crew of around 6 at any ...
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Are there other companies than Bigelow Aerospace planning to offer a space hotel?

After reading up on the matter I noticed that there currently are only two options to remain in space for longer than a few hours: International Space Station (US and Russia) assembled in orbit: ...
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1answer
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What kind of thermal protection system does the Dream Chaser have?

What is the plan for a thermal protection system on the Dream Chaser and what advantages will it have over the Space Shuttle TPS?
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Why are meteors, asteroids and comets not used as propulsion for spacecrafts? [duplicate]

I know it would take a lengthy amount of time to reach the asteroids and meteors. After hearing of the Europeans landing a probe on a comet, the first thing I could think of was: "Could this be used ...
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What caused John Glenn to see what he described as “fireflies”?

What caused John Glenn to see what he described as "fireflies"? I've heard three different explanations. If it's true that it was pee and sweat, could you explain how and why it was collected, and ...
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How the interface between de-spun platform and rotating parts of a spacecraft with artificial gravity could work? [duplicate]

You might have seen large rotating wheel space stations with central de-spun hubs or platforms in sci-fi movies like The Martian. My question is, how could the sealing between the rotational and ...
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1answer
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How frequently do astronauts revisit ISS?

Two factors at odds: "have experienced crew on the station, efficient since day zero" vs "have more astronauts with the station operations experience, not depending on the same small crew" - how often ...