Letter A - Universe dictionary by Futura-Sciences

Alphabetical index

A-train A world first, the A-Train is a constellation of six ...	Absolute magnitude The absolute magnitude of an object is the magnitude one ...
Accretion disk An accretion disk is a spinning cloud of gas condensing and ...	Achondrite Achondrites are stony meteorites without chondrules, similar ...
Aerocapture Aerocapture is the capture of an object in space by a ...	Aerodynamic vehicle An aerodynamic vehicle is any flying machine of which the ...
Air brake An air brake is a panel embedded in the fuselage or on the ...	Air braking Air-braking is the use of frictional forces by a space ...
Aircraft An aircraft is any machine designed by man able to rise or ...	Airfoil surface Airfoil surface refers to all the surfaces of an aircraft ...
Akari Astro-F, renamed Akari after it was put into orbit, was a ...	Albedo The albedo of the Earth-Atmosphere system is the fraction of ...
American space shuttle The American space shuttle was a reusable space vehicle ...	Anechoic chamber An anechoic chamber is an enclosure of which the walls are ...
Angular size Angular size is the apparent size of an object expressed as ...	Annual parallax Annual parallax is the difference between the apparent ...
Annular eclipse An annular eclipse occurs when the apparent diameter of the ...	Anomalistic period The anomalistic period is the time between two passages of ...
Antares Antares is the brightest star in the constellation of ...	Anti-g suit An anti-g suit is a protective suit making it possible for ...