CanX-1
The Canadian Advanced Nanospace eXperiment 1 (CanX-1) is Canada's first nanosatellite and one of the smallest satellites ever built; it has a mass of under 1 kg, fits in a 10 cm cube, and operates on less than 2 watts.
CanX-1 was completed in 22 months and was launched, along with the Microvariability and Oscillations of STars telescope, on June 30, 2003 at 14:15 UTC by Eurockot Launch Services from Plesetsk, Russia. It lost contact with Earth after launch.
Read more about this topic: Canadian Advanced Nanospace E Xperiment Program