A journey, by a human or robotic spacecraft, into space for a specific reason (normally to gather scientific data)

(computing) a parameter (in some file systems) that specifies the storage space required for a new file

(astronomy) The reddening of the light from distant stars because of selective absorption and scattering by interstellar dust

Any activity performed by an astronaut outside of a space vehicle in space.

(uncountable) Flight into, from or through space. / (countable) A voyage in space.

The shaped cavity in a compression mold in which the substance to be molded is loaded

A system of protective and pressurized clothing, together with environmental equipment, worn by astronauts when in space. / A pressurized protective outfit worn by people working with extreme biohazards.

(space science) A robotic space vehicle designed to voyage beyond Earth's orbit.

(mathematics) Any space exhibiting hyperbolic geometry rather than Cartesian geometry

(computing) A range of discrete addresses, all the address locations available in a particular, named, subset of a computer's (virtual or real) memory.