April 2026
Rethinking the spacesuit as a biological system
.... It is here – inside spacesuits, habitats and life-support systems – that biological reality most often collides with engineering legacy. As human spaceflight shifts toward longer missions, greater autonomy and renewed lunar ambition, that interface...
July 2019
Science and sensation in microgravity
... angle of 47 degrees has been reached, the thrust and engine speed are cut back significantly. This moment, called the ‘...team comprises three pilots, four safety attendants, flight engineers, one cameraman, two photographers and four ZeroG instructors...
October 2019
Time to overcome the expendable rocket mindset
.... A typical trajectory is shown in the graph. Ascender would accelerate to Mach 1.8 using only its jet engines before its rocket engine is started and it pull up to a climb angle of 70 degrees. It would then accelerate on this steep climb to a speed...
April 2021
Satellite servicing comes of age
... down because they have run out of station-keeping propellant MEV-1 uses highly efficient Electric Propulsion (EP) engines, utilising xenon propellant to produce far more delta-v (velocity change) than standard chemical propellants. In fact, MEV...
May 2021
In-situ propellant design for Mars ascent vehicles
... impractical as they would require infeasibly large inlets. Likewise, condensed phase combustion products make the turbojet engine inadequate and an infeasibly high speed vehicle is needed for ramjet operation. This leaves rocket propulsion systems...
May 2024
The universe in acrylics - an artist’s passion
..., site. With QinetiQ, I used my creative flair to help describe the heritage of the organisation and I listened to the engineers to tailor my messaging (both written and visual) to aid their conversations and work progress. After QinetiQ, I was...
