April 2018
Developing Mars
...plausible though not proved; if truly present they are likely carbonaceous, suitable for production not only of oxygen and hydrogen but also methane, as via Pioneer Astronautics’ CAVoR system. Fortunately, thermal extraction of volatiles is an easier...
January 2019
Materials make the space mission
... debris An additional threat in low Earth orbit - at altitudes between 200 km and 700 km - is exposure to atomic oxygen, individual atoms of oxygen at the fringes of the atmosphereESA It is important to note also that the space around Earth is not...
July 2019
Lessons from our first race to the Moon
...progressed, including not only the use of liquid oxygen but also the more technically demanding liquid hydrogen... of the fuel injector proved to be crucial in enabling the oxygen and kerosene to explosively combine without tearing the engine apart. A...
May 2021
In-situ propellant design for Mars ascent vehicles
...lungs will boil away if the body is unprotected, while breathable oxygen cannot be delivered to the body for more than a few ...peroxide (H2O2), nitrous oxide (N2O), liquid oxygen (LOX) and gaseous oxygen (GOX), all of which have various advantages...
09 May 2016
Ancient silicate grains reveal histories of stardust in the Galaxy
... of an atom or an element that have the same number of protons, but different numbers of neutrons – the most abundant oxygen atom is 16O, having eight protons and eight neutrons in its nucleus. In stellar nucleosynthesis, different types of reactions...
23 June 2021
Exoplanets with Earth-like biospheres may be rare
...to efficiently produce nutrients and molecular oxygen via normal i.e Earth-like oxygenic photosynthesis. The results were not ...the PAR wavelength range of 400 to 700 nanometres. Oxygenic photosynthesis would still be possible, but such planets could...
