August 2017
Big science from small spacecraft
...-2). Other technology developments that will greatly enhance or enable deep space nanosat missions include: low-power modes and duty cycling; efficient, lightweight solar arrays; greater energy storage capacity; on-board data compression; delay...
August 2017
Space invaders and the usual suspects - disruptive trends in Earth observation
...-2, the first commercial EO satellite to collect images with a ground sampling distance below 1 m (0.82 m) GSD at nadir in panchromatic mode, in September 1999. Ikonos imagery began to be sold in January 2000 and the US took the lead in the race ...
November 2017
Delivering a revolutionary reduction in space launch costs
... efficient rocket engine, SABRE enables air-breathing flight from standstill to Mach 5+, before transitioning into rocket mode, allowing orbital access. Unlike other hypersonic propulsion systems, it can power a vehicle from take-off to high...
February 2018
Are we asking the right questions about space debris?
... encounter speeds in LEO are 10 km/s is somewhat misleading since for these clusters the median is around 12 km/s and the mode is well above 13 km/s. Data in the table show that a collision is most likely in C975 as there is a ~1/90 probability each...
June 2018
Cosmic communications and the anthropology of outer space
...team work within what anthropologist Stefan Helmreich has identified as “abductive” reasoning. This future-facing, exploratory mode of doing science differs from deductive logic, in which one uses given rules to reach a conclusion, or inductive logic...
February 2019
Reflections on the future human condition
... accomplishments. Weightlessness and cosmic radiation, the duration of interplanetary trips using current (and even future) modes of transport, the need to find oxygen and food resources, not to mention the imperative to reproduce in a context...
