The emphasis is not on celestial mechanics and thermodynamics but on teamwork and the generation of practical ideas.

FORBES: The Space Mafia

During his long and distinguished career, he conducted research in areas such as astrodynamics, celestial mechanics, archaeoastronomy and neural networks.

BBC: Academic and writer Archie E Roy dies aged 88

This conjunction, as it is known, plays havoc with communications and the robot was forced to park up while the celestial mechanics took their course.

BBC: Curiosity Mars rover to investigate classic rock type