Monitoring the High-Energy Sky with Small Satellites

Thanks to the recent remarkable progress in the development of nano/micro/small-satellites and new launchers on the market, space is becoming increasingly more accessible. This provides new opportunities to diversify space astronomy which was hitherto dominated by relatively few large projects. I will describe the current plans for small missions, including nano-satellite constellations, to monitor the transient high-energy sky and thus also aid multi-messenger astronomy. I will summarise the results of the precursor missions GRBAlpha and VZLUSAT-2, which are operating in orbit and detecting transients routinely as well as the development of a UV space telescope on a small-sat dedicated to follow-up observations of kilonovae.