Precoolers were proposed as part of the research in America on Project Suntan – a liquid hydrogen fuelled aircraft. Robert P. Carmichael in 1955 devised…
Each rocket type requires a different kind of propellant: chemical rockets require propellants capable of undergoing exothermic chemical reactions, which provide the energy to accelerate…
Nearly polar orbit around a planet, in which the satellite passes over any given point of the planet’s surface at the same local mean solar…
The Hubble classification system rates elliptical galaxies on the basis of their ellipticity, ranging from E0, being nearly spherical, up to E7, which is highly…
Advantage of the MOA concept is its corrosion free behaviour, leading to a long lifetime of the system. The same magnetic fields that generate the…
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites…
