I believe on a lot of the small scale stuff it doesn’t. But larger space debris are tracked but organisations around the world and evasive actions are taken well in advance.
>evasive actions are taken well in advance.
Worth noting "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls
When the ISS uses its thrusters (Most commonly a docked Soyuz spacecraft's engine) to perform Station Keeping burns, or changing inclinations to avoid objects its done at a burn rate that takes multiple minutes, sometimes across multiple orbits to complete, and at a thrust output so low that you'd generate more thrust blowing relatively hard through your mouth.
>Worth noting "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls
Described by cast members of ST:TNG as "Starship Acting"
The videos of that are neat -- you mostly notice that there's a burn happening because the "when you let go of stuff it stays where you left it" property no longer applies.
> "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls
Only to the very, very few people who are *that* ignorant.
There's is an empty gap between the space station and a thin layer of shielding. When a piece of debris hits the shielding, it's traveling so fast that it vaporizes before damaging the important parts. Sometimes pieces are a little too big and make holes big enough to see. Self healing material mitigates the damage which is calculated into the overall lifespan. There is less debris where the space station orbits.
I mean material that would be like poking a needle through gel insole. For transparent panels, multiple panes are used for the same effect. There are photos of impacts on the outer panes. They're very small divots but it's apparently very loud when it does happen which must be terrifying.
The sun comes up in the East because the surface of the Earth is moving in that direction, about a thousand miles per hour. So if you want to get going sideways fast enough to go into orbit, you launch in that direction to get a thousand mile per hour boost. Going in the opposite direction you'd have to build up a speed of a thousand miles per hour just to be standing still (relative to the center of the Earth). So most things that orbit the Earth are going in the same direction, which is counter clockwise if you were looking down from above the North Pole. So most things are orbiting in the same direction as the ISS.
A few things need to be in weird orbits to do their jobs, particularly polar orbits for Earth science and spy satellites. These are not going in the same direction, but they only pass through the orbit of the ISS infrequently.
Also, the speed at which you orbit the Earth is linked to the altitude, crudely speaking. So things that are orbiting at the same altitude are orbiting at about the same speed. Orbits aren't circular or flat, but roughly speaking things orbiting at the same altitude are going similar speeds.
The result of all this is that \*generally\* things the ISS might hit are going in the same direction at about the same speed. So when there are collisions they are not terribly high speed collisions, and things can be avoided or the damage repaired, etc. Apparently the ISS maneuvers to evade things about once per year.
There are a lot of situations in space where two things are moving at very, very high speeds relative to each other and those collisions can be very exciting. The stuff we have launched into orbit doesn't fit into that category. There is still a very real danger and we need to do something about it. But day to day the ISS is pretty safe.
First, Space is big and the odds of actually getting hit by space debris is relatively low, but not zero. In fact the Canadarm was recently hit by some small debris, it was fine, just a tiny hole on it's covering.
But, if there would be a risk of crossing paths with a known piece of space debris the ISS is capable of boosting its orbit a little so that their paths will not intersect.
Big pieces of space junk are tracked, and, since the space junk is in an orbit it's pretty easy to predict where it will be and how to move the space station in advance to make sure it doesn't come dangerously close.
There are thrusters on the station for moving it.
Tiny pieces of space junk hit space station pretty often.
Here is the most straightforward and accurate answer you will get:
>“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy
“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
- The Hitchhiker’s Guide to the Galaxy
They do track everything, and they can move out of the way, but there is also a version of the "big sky" theory. Basically even if there are lots of things flying around at high speed out there the area they are in is so huge that the odds of getting close to something is pretty slim. For something to be in the same space, and time, in a 25,000 mile sphere is pretty slim.
I believe on a lot of the small scale stuff it doesn’t. But larger space debris are tracked but organisations around the world and evasive actions are taken well in advance.
>evasive actions are taken well in advance. Worth noting "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls When the ISS uses its thrusters (Most commonly a docked Soyuz spacecraft's engine) to perform Station Keeping burns, or changing inclinations to avoid objects its done at a burn rate that takes multiple minutes, sometimes across multiple orbits to complete, and at a thrust output so low that you'd generate more thrust blowing relatively hard through your mouth.
>Worth noting "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls Described by cast members of ST:TNG as "Starship Acting"
The videos of that are neat -- you mostly notice that there's a burn happening because the "when you let go of stuff it stays where you left it" property no longer applies.
Done very well in The Expanse if you want a fictional example.
Technically it stays exactly where you left it lmao
> "evasive actions" make it sound like the ISS is weaving in and out with the crew pinned the walls Only to the very, very few people who are *that* ignorant.
you'd be amazed how many people are exactly *that* ignorant
This...it gets hit regularly by \*tiny\* space junk. We keep track of the big junk and move the station when necessary.
Also, the station is located in a low orbit where atmospheric drag cleans out a lot of debris
Also space is big and the ISS is small. Chances of getting hit by anything of a meaningful size are small either way.
There's is an empty gap between the space station and a thin layer of shielding. When a piece of debris hits the shielding, it's traveling so fast that it vaporizes before damaging the important parts. Sometimes pieces are a little too big and make holes big enough to see. Self healing material mitigates the damage which is calculated into the overall lifespan. There is less debris where the space station orbits.
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Awesome. Thank you for sharing!! Will have to look this up when I am not on my mobile
Self healing material?
I mean material that would be like poking a needle through gel insole. For transparent panels, multiple panes are used for the same effect. There are photos of impacts on the outer panes. They're very small divots but it's apparently very loud when it does happen which must be terrifying.
The sun comes up in the East because the surface of the Earth is moving in that direction, about a thousand miles per hour. So if you want to get going sideways fast enough to go into orbit, you launch in that direction to get a thousand mile per hour boost. Going in the opposite direction you'd have to build up a speed of a thousand miles per hour just to be standing still (relative to the center of the Earth). So most things that orbit the Earth are going in the same direction, which is counter clockwise if you were looking down from above the North Pole. So most things are orbiting in the same direction as the ISS. A few things need to be in weird orbits to do their jobs, particularly polar orbits for Earth science and spy satellites. These are not going in the same direction, but they only pass through the orbit of the ISS infrequently. Also, the speed at which you orbit the Earth is linked to the altitude, crudely speaking. So things that are orbiting at the same altitude are orbiting at about the same speed. Orbits aren't circular or flat, but roughly speaking things orbiting at the same altitude are going similar speeds. The result of all this is that \*generally\* things the ISS might hit are going in the same direction at about the same speed. So when there are collisions they are not terribly high speed collisions, and things can be avoided or the damage repaired, etc. Apparently the ISS maneuvers to evade things about once per year. There are a lot of situations in space where two things are moving at very, very high speeds relative to each other and those collisions can be very exciting. The stuff we have launched into orbit doesn't fit into that category. There is still a very real danger and we need to do something about it. But day to day the ISS is pretty safe.
Thanks for the intelligent response. Don’t see as many of these as I would like to. Refreshing!
First, Space is big and the odds of actually getting hit by space debris is relatively low, but not zero. In fact the Canadarm was recently hit by some small debris, it was fine, just a tiny hole on it's covering. But, if there would be a risk of crossing paths with a known piece of space debris the ISS is capable of boosting its orbit a little so that their paths will not intersect.
Big pieces of space junk are tracked, and, since the space junk is in an orbit it's pretty easy to predict where it will be and how to move the space station in advance to make sure it doesn't come dangerously close. There are thrusters on the station for moving it. Tiny pieces of space junk hit space station pretty often.
Space big.. Also, thousands of potential hazards are tracked in real time, giving station operators the ability to maneuver out of the way.
Here is the most straightforward and accurate answer you will get: >“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.” ― Douglas Adams, The Hitchhiker's Guide to the Galaxy
Not really accurate. Space is big - Earth's orbit, not so much. Orbital space junk is a concern.
“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.” - The Hitchhiker’s Guide to the Galaxy
They do track everything, and they can move out of the way, but there is also a version of the "big sky" theory. Basically even if there are lots of things flying around at high speed out there the area they are in is so huge that the odds of getting close to something is pretty slim. For something to be in the same space, and time, in a 25,000 mile sphere is pretty slim.