There are seven flight projects that will visit 13 different comets and asteroids in the next 13 years.
Amateur Astrometric Contributions in Support of Flight Projects
Amateur-Professional Workshop on Minor Planets
23.04.1999
Aufsatz (Konferenz)
Keine Angabe
Englisch
Astrometric projects in U.S.S.R.
Elsevier | 1991
|FLIGHT-TESTING AMATEUR-BUILT HELICOPTERS
British Library Conference Proceedings | 2002
|Mission support - Planetary flight projects
NTRS | 1969
Mission Support - Planetary Flight Projects
NTIS | 1969