Space debris (also known as "orbital debris", "space junk", or "space waste") is the collection of defunct objects in orbit around Earth and includes everything from spent rocket stages, old satellites, fragments from disintegration, erosion, and collisions.

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Why don't all space junks burn up? [migrated]

Man-made satellites have to use boosters to accelerate to maintain orbit around the Earth, space debris and old satellites with depleted booster should be pulled by either Earth's gravity or slowed by ...
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Chances of man-made satellite colliding with space debris [migrated]

Firstly, has a man-made satellite, or indeed any spacecraft, ever collided with space debris and been destroyed? What are the chances of this happening? (I imagine very slim, but how slim?) And do we ...
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Telescope buying guide for a beginner in India

I am located in the southern part of India and am looking forward to buy a telescope to gaze up to look ay farther planets, moons in our solar system and take pictures. How should I go about getting a ...
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Which planet or moon has all resources that can be used to sustain life in a controlled biosphere? [closed]

Now that we are making it to Mars, continuing onward, in an effort for humanity to civilize other planets, not just setting up residential colonies, but to mine minerals and carry on geological and ...
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Parking a telescope at a Lagrange point: is this a good idea from a debris point of view?

The James Webb space telescope is supposed to be located at the Earth-Sun L2 Lagrange point. Do we expect the region around that point to have a higher concentration of space debris, asteroids, ...