This article describes current experiments in space which measure charged cosmic ray particles in the range from 10 GV to 105 GV of magnetic rigidity p/(Ze). In this energy range, cosmic rays are expected to originate from sources in the Milky Way and be confined to our galaxy. Technologies and methods to study the spectra of electrons, positrons and nuclei are described, as well as the analysis of antimatter components. Figures of merit for instruments currently in orbit are discussed.


