January 2020
Satellite-based IoT - the race is on
... LEO/GEO interference. Twenty years ago the International Telecommunication Union (ITU) declared that NGSO (non-geostationary orbit) craft carry the responsibility for avoiding interference with GEO satellites. Consequently, the need to mitigate the...
January 2021
Time to change our relationship with space?
... I moved office furniture! Perhaps I should have said Rocket Scientist! Meteosat Second Generation (MSG) satellites operate in geostationary orbit nearly 36,000 km over the west coast of Africa, from where they continuously scan the globe, showing...
February 2022
An interplanetary transportation system
...to move mass from Earth to a train station beyond geostationary orbit (GEO), known collectively as the Galactic Harbour; a ... The proposed Space Train would be in a continuous ‘Cycler Orbit’, as described by Aldrin, and would operate like a continuous ...
September 2025
AI cybersecurity - challenges in space
...add cost and complexity, and residual risks always remain. Communication with space assets, particularly those in geostationary orbit (GEO) or deep space, is subject to significant signal propagation delays (latency) and constrained data transmission...
01 June 2021
Space junk collision highlights need for intervention
... services. It is estimated that there are around 34,000 trackable objects - larger than 5-10 cm in low Earth orbit (LEO) and 30 cm to 1 m in geostationary orbit (GEO) - as well as several thousands to millions of non-trackable debris particles...
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...
