A crewed or robotic spacecraft designed to orbit the Earth

The competition between nations in the field of space exploration.

(mathematics) The vector space which comprises the set of linear functionals of a given vector space.

(mathematics, mathematical analysis, topology) Any set on which a metric is defined, giving a distance between any two elements.

Any scientific discipline concerned with the study of phenomena occurring in space, or with space flight.

motion sickness caused by the weightlessness of space flight

A spacecraft.

All the objects in orbit around the Earth that were created by human activity, but now have no useful purpose.

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

(transitive) To position (objects, people etc.) at regular intervals with a calculated space between them. / (intransitive, idiomatic) To become distracted or disoriented; to lose attention or focus.