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
Big science from small spacecraft
... seen by radio telescopes on Earth because they are blocked by our ionosphere. If we could position a radio telescope up at geostationary orbit (GEO) or higher, well above the ionosphere, we could observe and characterise these short-lived phenomena...
February 2019
The Space Elevator – an alternative path to space?
... structure around an equilibrium of acceleration. This can happen in a stationary orbit around a rotating celestial body or a Lagrange point. Geosynchronous equatorial or geostationary orbit (GEO), offers such an equilibrium for Earth. A body such...
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 ...
August 2019
Lessons from the Sun
... after, a spectacular aurora, bright enough to cast shadows, appeared along the southern coast of Britain. Spacecraft in geostationary orbit effectively became solar wind detectors as Earth’s magnetic shield buckled under the extreme solar wind...
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 ...
