March 2015
Sky links: from multi-satellite systems to nano-launchers
... that is still widely used. The effective use of the spectrum by large SC during television transmission from geostationary orbit is telling – the same frequency may be used by satellites in different positions and additionally radiate with different...
March 2016
Saving Earth from an Expanding Sun
...asteroid at the L1 or L2 or L5 Lagrangian points of Earth’s orbit and tug Earth away. Sound implausible? Maybe it’s time to take ... a very, very long tether from Earth to above geostationary orbit, secured to a counterweight, it could be possible to...
September 2016
Transforming US space policy
... demonstrated similar capabilities. And now, a Russian Luch satellite is manoeuvring from one satellite to another in geostationary orbit. Apart from potentially hostile activities, we face a threat from the growing population of space debris. This...
August 2017
On-orbit assembly will deliver major benefits in coming decade
... and provide launch savings of several hundred million dollars. Communications satellites On-orbit assembly can also provide payoff for telecommunications in geostationary orbit (GEO). Consider the data distribution sector where the satellite is used...
January 2019
Preparing for a robotic revolution in Earth orbit
...; it produces no greenhouse gases, radioactive waste, pollution, or scarring of the Earth for resources; and from geostationary orbit, it is most efficiently received at low latitudes, where much of the Earth’s population growth is occurring. Japan...
May 2019
Active debris removal faces legal minefield
... measures to remove objects from low Earth orbit (LEO) and geostationary orbit (GEO) after the end of their ...knowledge could apply to tacit consent in the context of these in-orbit operations. ESA is planning the world’s first ever active debris ...
