February 2020
Aeroshells – from LEO to Mars
...deployment mechanism. Debris mitigation LEO is one of the most commercially valuable regions of outer space (second only to geostationary orbit, GEO), and is situated between altitudes of about 150 km and 2000 km. The key letter in the acronym is the...
November 2025
Extra-terrestrial Skyring: managing space debris with an artificial planetary ring
... ‘resonance gaps’, which would provide a form of safe parking orbit where space debris can be transported. The one we are all familiar with is geostationary orbit (GEO), a 1:1 resonance at an altitude of 35,786 km, but this is widely used for active...
14 April 2026
Spaceflux lands Canadian military space surveillance deal
... use Spaceflux’s optical telescope systems and Cortex AI platform to track objects from low Earth orbit (LEO) through to geostationary orbit (GEO). Founded in 2022, Spaceflux is headquartered in London, with operations in Italy and a sensor network...
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 missions... 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
... from space. Previous attempts to provide this service focused on larger, more powerful and more expensive satellites in geostationary orbit (GEO), but they faced the issue of longer signal delays because of the greater distance compared with LEO...
September 2024
Hypersonics and the route to orbit
...point-to-point travel and LEO missions. The next iteration, HELLO-2, will carry 5500 kg to LEO, 1730 kg to geostationary orbit (GEO) and 760 kg to the lunar surface, and will be followed later by a proposed HELLO-3M, a crewed lunar mission. Naturally...
