Аннотация:The JEM-EUSO program aims to study Ultra High Energy Cosmic Rays (UHECRs) from space with a significant increase in exposure in comparison with the current experiments and a uniform coverage of the sky. Measurements from space would thus be complementary to those on the ground with a potential for large increase in statistics depending on the orbit of the instrument and the field of view of the optics. To achieve this goal, within the strong constraints of power, mass, size and bandwidth of space detectors, a number of novel technologies — from optics to sensors, front-end and read-out electronics — have been developed and tested over the years. Several scaled versions of the JEM-EUSO telescope have been built and tested: in August of 2014 a balloon flight (EUSO-BALLOON) was successfully performed from Timmins (CA); since February of 2015 a ground based detector (EUSO-TA) has been operating at the Telescope Array site in Utah. The next steps of the JEM-EUSO program include: a) NASA Super Pressurised Balloon (SPB) flight from New Zealand (2017); b) MINI-EUSO — a detector to be placed inside the International Space Station (2017); c) K-EUSO — the first reflector detector to perform UHECR science from space (2019), paving the way to d) EUSO, the first full refractive telescope. In this work we discuss the current status of research and plans of the JEM-EUSO program.