Even though the ISS is in space still there is some gravity over there ..!! Do you know how..?

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Even though the ISS is in space still there is some gravity over there ..!! Do you know how..?
This is because the ISS i.e. the international space station revolves (orbits) around the earth at an altitude of about 400 kilometers or 250 miles.
And at that much altitude, there is about 90% of the earth's gravity as compared to being on the surface.
It is orbiting the earth at a speed of about 27,600 kph, by which it orbits the earth about 15.5 times each day.
The International Space Station (ISS) is the biggest man-made structure i.e. in space with a massive size i.e. about 239.4 in length and 357.5 in width that is near about the same or a little bit greater than the football field, having a mass of about 419,725 kg.

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