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 2020
Battle for the night sky - from telescopes to ad-breaks
...on larger, more powerful and more expensive satellites in geostationary orbit (GEO), but they faced the issue of longer...objects - including the Humanity Star and the presently hypothetical orbital advertising displays - purely in order to be seen from...
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 2024
Hypersonics and the route to orbit
...here is using hypersonic technology to realise a two-stage to orbit spaceplane. Artist’s impression of H1X. The DASS GNX is ...iteration, HELLO-2, will carry 5500 kg to LEO, 1730 kg to geostationary orbit (GEO) and 760 kg to the lunar surface, and will ...
