Questions tagged [astronaut-propulsion]

Equipment that propels a suited astronaut during a spacewalk. Examples include the Manned Maneuvering Unit and SAFER.

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The Loose Astronaut

A common point of drama in science fiction is the loss of a tether during a spacewalk threatening to (or actually causing) send an unlucky astronaut hurtling into space. In reality, is such a thing ...
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How do astronauts turn in space?

A recent question back in Physics asks whether there is a way for an astronaut to rotate when in microgravity and without touching anything else, while still conserving angular momentum. One way to ...
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Are there any plans for handling people floating away during an EVA?

An EVA carries the risk that objects and people may become detached from the ship/structure and drift away from it. In the case of objects they might become a hazard or their loss might be a problem, ...
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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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What is the farthest that a "human satellite" has been from their spacecraft?

There are several news items about the recent passing of astronaut Bruce McCandless II, and they generally refer to his work developing, and then using the Manned Maneuvering Unit (MMU). BBC: Bruce ...
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Could a harpoon-like gun be used by an astronaut to stop drifting away from a ship?

I saw the movie Gravity. Spoiler alert, hover with your mouse over the yellow bar below to reveal a part of the movie's plot: Why can't they have a gun kind-of thing with a string/rope? One end of ...
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Could moon ice be used to fuel a steam powered jetpack for EVA in space or high altitude exploration on the moon?

For long term moon operations, would it be practical to have a jetpack that used steam as a source for EVA on the moon surface and above it in orbit? I imagine a scenario where lunar ice deposits ...
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Could an astronaut with a jump and a "jet pack" "jump" off of the Moon?

The initial naïve question was: "Could an astronaut with a jump and a "jet pack" "jump" off of the Moon?" :) For fun, let's assume the optimal circumstances: Gemini era ...
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How do jetpacks work in space?

I've seen in some videos of astronauts that they used to use a jetpack type system to maneuver in the vacuum of space around the ISS and other satellites using pressurized gas. From Wikipedia ...
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How were the Skylab "jet shoes" expected to maintain attitude?

Donald K. Slayton, MSC Director of Flight Crew Operations, requested that the proposed T-020 "Jet Shoes" experiment be removed from all AAP flights. The "Jet Shoes" experiment was ...
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