plural of rare earth metal

(idiomatic, of an event, thing, person) To be brought back to reality; to emerge from a daydream.

plural of rare earth mineral

(space flight) a spacecraft designed to survive reentry and landing, returning from space back to planet Earth

plural of Earth return vehicle

plural of near-Earth object

The hypothesis that the evolution of life required an improbable combination of astrophysical and geological events and circumstances, and for this reason complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare.

plural of alkaline-earth metal

plural of low Earth orbit

plural of rare earth magnet