Marko Höyhtyä is Research Professor of satellite communications at VTT Technical Research Centre of Finland Ltd. He has 20 years’ experience on connectivity technology research and development both for terrestrial and satellite networks. He has led several European Space Agency (ESA) projects as well as prepared a joint vision with ESA for 5G and Beyond networks. He was a Visiting Researcher at the Berkeley Wireless Research Center, CA, from 2007 to 2008, a Visiting Research Fellow with the European Space Research and Technology Centre, the Netherlands, in 2019 and a Visiting Professor at the University of Bologna in 2023. His research interests include critical communications, autonomous systems, space-based observation technologies and satellite-terrestrial connectivity. He is an associate professor (docent) at the National Defence University of Finland as well as at the University of Oulu.