Largest satellite deployed from the International Space Station

The largest satellite deployed from the International Space Station is RemoveDEBRIS, built by Surrey Satellite Technology (UK), which has a mass of 88.47 kg (195 lb 0.68 oz) and measures 79 x 60 x 60 cm (31.1 x 23.6 x 23.6 in). The satellite was released from the NanoRacks Kaber Microsatellite Deployer on 20 June 2018.

RemoveDEBRIS is an experimental satellite designed to test technologies that could be used to safely deorbit dangerous orbital debris (space junk). It was developed by the Surrey Space Centre (part of the University of Surrey) in partnership with Airbus Defence and Space (Germany, UK, and France); Airbus Safran Launchers (France); SSTL (UK); ISIS (Netherlands); CSEM (Switzerland); Inria (France); and Stellenbosch University (South Africa).

The satellite's planned mission will see it launch two small subsatellites, one of which it will attempt to snare with a net launcher, while the other will be used to test optical tracking and guidance systems. It will also deploy a small target, then shoot it with a harpoon. Once these experiments have been completed, the satellite will deploy a large drag sail, which will act like a parachute, slowing the satellite and pulling it down into the earth's atmosphere so it doesn't become a piece of space junk itself.