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After a spacewalk an astronaut's fingernails may fall off


Eldorado

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Let's face it, going to space is havoc on the human body. We evolved in an Earth environment, over hundreds of millions of years; so take away the Earth environment and things start going a little awry.

There's bone and muscle density loss. There's vision problems from too much fluid in the brain; without gravity, bodily wetness is free to just float around inside willy-nilly. There's the problem with urination; turns out gravity is pretty essential to our sense of when we need to pee. There's possible erectile dysfunction (and it's not for the reason you think).

And in a particularly grotesque downside to spaceflight, after performing an extravehicular activity (EVA), more commonly known as a spacewalk, a surprising number of astronauts' fingernails just… fall off.

Full article at Science Alert

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  • The title was changed to After a spacewalk an astronaut's fingernails may fall off
 
2 hours ago, Eldorado said:

Let's face it, going to space is havoc on the human body. We evolved in an Earth environment, over hundreds of millions of years; so take away the Earth environment and things start going a little awry.

There's bone and muscle density loss. There's vision problems from too much fluid in the brain; without gravity, bodily wetness is free to just float around inside willy-nilly. There's the problem with urination; turns out gravity is pretty essential to our sense of when we need to pee. There's possible erectile dysfunction (and it's not for the reason you think).

And in a particularly grotesque downside to spaceflight, after performing an extravehicular activity (EVA), more commonly known as a spacewalk, a surprising number of astronauts' fingernails just… fall off.

Full article at Science Alert

Why can't we create gravity in space?

Like a centrifugal gravity force?

Edited by joc
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1 hour ago, joc said:

Why can't we create gravity in space?

Like a centrifugal gravity force?

We can, but at the moment it is prohibitively expensive to build.

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