  This paper is based on the rapporteur talk given at the 34$^{th}$
International Cosmic Ray Conference (ICRC), on August 6$^{th}$, 2015. The
purpose of the talk and paper is to provide a summary of the most recent
results from balloon-borne and space-based experiments presented at the
conference, and give an overview of the future missions and developments
foreseen in this field.

High Energy Astrophysical Phenomena