project, which would use a double launch with the smaller Proton rocket and an assembly at a Salyut space station. This Mars 5M mission was planned for 1979, but was canceled in 1977 due to technical problems and complexity.

1990s

The Orbital Debris Collection (ODC) experiment deployed on the Mir space station for 18 months in 1996-97 used aerogel to capture particles

1.Previous
3.Next