Nebula Public Library

Lunar exploration has only started within the last few decades, and interest is continuing to grow. Space agencies and private investors are looking at the opportunities that it brings and see more commercial interest in it. According to a Euroconsult study, 51 missions to the Moon are planned in 2020–2029, compared to just seven in the previous decade, allowing us to better explore Earth's natural satellite and prepare for long-term lunar exploration and, in the future, deep space.

As humans travel further into the Solar System for longer periods of time, many challenges must be solved. One challenge is ensuring an adequate food supply for the crew. Currently all of the food that is consumed by astronauts on the International Space Station (ISS) is prepackaged on Earth and transported to the ISS. This approach requires a significant investment of mass and the long-term stability of nutrients in the stored food is unclear. Especially the impact of radiation outside of low-Earth orbit may have a negative impact on the stored food.

CubeSats have the potential to revolutionise Earth observation from space by exploring different operating points in terms of spatial, temporal, and spectral resolution. However, physical limitations, mostly in terms of size, prevent them from obtaining high-quality images. OPS-SAT, while characteriaed by a small form factor, provides an impressively capable and flexible hardware/software platform for executing demanding machine learning algorithms (inference stage).

As proved in several missions, the Lorentz force acting on the electric current carried by a space electrodynamic tether (EDT) can be used to propel spacecraft without using propellant. State-of-the-art EDTs involve a bare tape for passive electron collection (anodic contact) and an active device, or a tether segment coated with a low-work-function material, for electron emission (cathodic contact).