The Hubble Space Telescope is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned both as a vital research tool and as a public relations boon for astronomy.

Tiangong is a chinese space station placed in low Earth orbit between 340 and 450 km above the surface. The Tiangong Space Station, once completed, will be roughly one-fifth the mass of the International Space Station and about the size of the decommissioned Russian Mir space station