ERT by Ensign February 20, 2021 0 Earth-received time, UTC of an event at DSN receive-time, equal to SCET plus OWLT.
Escape Velocity by Ensign February 20, 2021 0 The speed required for an object to escape the gravitational pull of a planet or other body.
ESP by Ensign February 20, 2021 0 Extra-Solar Planet, a planet orbiting a star other than the Sun. See also Exoplanet.
ET by Ensign February 20, 2021 0 Ephemeris time, a measurement of time defined by orbital motions. Equates to Mean Solar Time corrected for irregularities in Earth's ...
Event Horizon by Ensign February 20, 2021 0 The invisible boundary around a black hole past which nothing can escape the gravitational pull - not even light.
Evolved Star by Ensign February 20, 2021 0 A star that is near the end of its life cycle where most of its fuel has been used up. ...
Exoplanet by Ensign February 20, 2021 0 Extrasolar planet. A planet orbiting a star other than the sun.
