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

Dyne

Aerospace; Space flight

A unit of force equal to the force required to accelerate a 1-g mass 1 cm per second per second. Compare with Newton.

Dynamical time (DT)

Aerospace; Space flight

Replaces Ephemeris Time, ET, as the independent argument in dynamical theories and ephemerides. Its unit of duration is based on the orbital motions of the Earth, Moon, and planets. DT has two ...

Deep space network (DSN)

Aerospace; Space flight

NASA's worldwide spacecraft tracking facility managed and operated by JPL.

Deep space mission system (DSMS)

Aerospace; Space flight

The system of computers, software, networks, and procedures that processes data from the DSN at JPL.

Force (F)

Aerospace; Space flight

Two commonly used units of force are the Newton and the dyne. Force = Mass X Acceleration.

Exoplanet

Aerospace; Space flight

Extrasolar planet. A planet orbiting a star other than the sun.

Ephemeris time (ET)

Aerospace; Space flight

A measurement of time defined by orbital motions. Equates to Mean Solar Time corrected for irregularities in Earth's motions. Obsolete, replaced by TT, Terrestrial Time.