Function: noun
Date: 1958
: a propulsive device for a spacecraft that consists of a flat material (as aluminized plastic) designed to receive thrust from solar radiation pressure
Function: noun
Date: 1958
: a propulsive device for a spacecraft that consists of a flat material (as aluminized plastic) designed to receive thrust from solar radiation pressure
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012