Are Satellites in the sky or are they in space?

Question

Are Satellites in the sky or are they in space?

In: Planetary Science

Answer 1

Generally speaking, “space” begins at roughly 150km above the earth. But satellites orbiting the planet, even in low earth orbit (LEO), circle the planet no lower than 160km but most are higher. The ISS orbits at 400km. So, “sky” can be assumed to be under 150km.