September 2017
Science searches for cosmic company
... experiments of the last five decades have tried to tune in radio signals that are either deliberately or inadvertently beamed our way. This search, like the public’s interest in aliens, grew out of technical developments during the...
October 2017
Back to the future - heeding the lessons of history
... mightily to renewed economic growth and reversing global warming; all while making a fortune selling solar energy beamed from space to Earth below. However, we have lacked the vision and the will to invest in such efforts...
January 2018
Creating a viable cislunar economy
... and just 2.5 kW-hr/m2 in December. The Solar Power Satellite-Alpha concept. Solar energy is collected, converted to microwaves and beamed to Earth. One concept for a two giga-watt SSP satellite - called Solar Power Satellite (SPS) Alpha...
March 2018
Mapping the dark universe
... a ‘Deep Space mode’ (X- and Ka- bands), or a ‘Near-Earth mode’ (X- and K- bands). ESA’s deep space antennas have a beam waveguide structure. For the upgrade the mirrors M1 to M4 will not be modified. M5 will have the capability to rotate...
April 2018
Developing Mars
... contributor on the optical design and the control system for the Kansas City team in NASA’s Power Beaming challenge. He is a founding member and director of ISEC, an organization furthering space elevator related research, including the recent...
April 2018
Future Cubesat swarms pose significant communications challenges
... the satellite cross- link option increases access time, one ends up with several technical challenges such as beam handover, Doppler shift, need for directional antennas, increased free-space loss and reduced data rate...
