ELI5, Is there a sense of direction and space?

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Like if you were to leave Earth’s atmosphere and “float” next to it would you see the “floor” of space? Is it darkness? Would you see the stars down too.

How can you get oriented to direction? What’s north, south, east west?

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21 Answers

Anonymous 0 Comments

Not sure what you mean by floor of space, but assuming there’s anything nearby to give a sense of orientation you just pick an orientation and pretend that’s “up” even in a narrow sense… If you’re just in deep space, you’d probably see the band of the galaxy… In between galaxies it’s hard to say, someone’s probably got a simulation of what you’d see

But yea, unless you’re seriously far away from anything big or bright, yea, you’d see stars and at least the side of any planets or moons nearby that happened to be lit by the sun (assuming you’re still in a planetary system and/or relatively close to a planet/moon/etc)

As far as orientation, I’m pretty sure the space station has various panels on each wall that have an “up” just so two things in the same workstation aren’t oriented opposite from each other, but they each probably have a different “up”, or maybe just one way down the center of each tube… but if they were all the other way around, that’d be fine too (except they probably chose specific orientations relative to one another)

There are also several video games where you’re in space or otherwise don’t have a predefined “up” and some people get motion sick or disoriented, but you can also just get used to not having a specific direction be “up”

As far as north/south etc, that’s more of a navigation issue, so you’d probably need to identify certain stars and go from the, and if you went far enough you’d have to account for the patterns and relationships between stars changing because they’re not actually a static 2d dome around you like it appears when you are stationary

Anonymous 0 Comments

Not sure what you mean by floor of space, but assuming there’s anything nearby to give a sense of orientation you just pick an orientation and pretend that’s “up” even in a narrow sense… If you’re just in deep space, you’d probably see the band of the galaxy… In between galaxies it’s hard to say, someone’s probably got a simulation of what you’d see

But yea, unless you’re seriously far away from anything big or bright, yea, you’d see stars and at least the side of any planets or moons nearby that happened to be lit by the sun (assuming you’re still in a planetary system and/or relatively close to a planet/moon/etc)

As far as orientation, I’m pretty sure the space station has various panels on each wall that have an “up” just so two things in the same workstation aren’t oriented opposite from each other, but they each probably have a different “up”, or maybe just one way down the center of each tube… but if they were all the other way around, that’d be fine too (except they probably chose specific orientations relative to one another)

There are also several video games where you’re in space or otherwise don’t have a predefined “up” and some people get motion sick or disoriented, but you can also just get used to not having a specific direction be “up”

As far as north/south etc, that’s more of a navigation issue, so you’d probably need to identify certain stars and go from the, and if you went far enough you’d have to account for the patterns and relationships between stars changing because they’re not actually a static 2d dome around you like it appears when you are stationary

Anonymous 0 Comments

Theres no direction in space. even the coordinate systems we use in space are based off of direction from earth

Anonymous 0 Comments

Theres no direction in space. even the coordinate systems we use in space are based off of direction from earth

Anonymous 0 Comments

Theres no direction in space. even the coordinate systems we use in space are based off of direction from earth

Anonymous 0 Comments

Just to mess with you …

There are vast areas of deep space where human eyes are unable to see any light. You could be floating there in your suit, or your ship, and there would be nothing to orient on. There would be no direction, every way would be equal to every other way. No up, no down, no way of even picking a direction.

Anonymous 0 Comments

Just to mess with you …

There are vast areas of deep space where human eyes are unable to see any light. You could be floating there in your suit, or your ship, and there would be nothing to orient on. There would be no direction, every way would be equal to every other way. No up, no down, no way of even picking a direction.

Anonymous 0 Comments

Just to mess with you …

There are vast areas of deep space where human eyes are unable to see any light. You could be floating there in your suit, or your ship, and there would be nothing to orient on. There would be no direction, every way would be equal to every other way. No up, no down, no way of even picking a direction.

Anonymous 0 Comments

Depends upon your reference point. If you are referencing the earth, you have spinward and antispinward directions. Height above earth’s surface. “North” is above the orbital plane of the planets, or the sun’s north pole, etc.

Same for the sun, moon or even the galaxy center.

Sci-fi writers refer to gravity wells for “up” and “down”. Climbing out of planet’s gravity could be “up” and depending to the surface could be “down”.

Remember, in Ender’s game, the enemy’s gate is always down.

Anonymous 0 Comments

Depends upon your reference point. If you are referencing the earth, you have spinward and antispinward directions. Height above earth’s surface. “North” is above the orbital plane of the planets, or the sun’s north pole, etc.

Same for the sun, moon or even the galaxy center.

Sci-fi writers refer to gravity wells for “up” and “down”. Climbing out of planet’s gravity could be “up” and depending to the surface could be “down”.

Remember, in Ender’s game, the enemy’s gate is always down.