Space flight

Space flight

Of or relating to the act of voyaging outside the Earth's atmosphere and into outer space, and the science involved in achieving it.

Industry: Aerospace

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Space flight

Apoapsis

Aerospace; Space flight

The farthest point in an orbit from the body being orbited.

Acceleration

Aerospace; Space flight

Change in velocity. Note that since velocity comprises both direction and magnitude (speed), a change in either direction or speed constitutes acceleration.

Centripetal acceleration

Aerospace; Space flight

The inward acceleration of a body revolving around another body.

Centrifugal force

Aerospace; Space flight

The outward-tending apparent force of a body revolving around another body.

Cassegrain

Aerospace; Space flight

Reflecting scheme in antennas and telescopes having a primary and a secondary reflecting surface to "fold" the EMF back to a focus near the primary reflector.