earthrise
Astronomical term for the Earth appearing to rise above the horizon of another celestial body, especially the Moon.
アポロ8号の宇宙飛行士が初めて地球の出を目撃した。
The Apollo 8 astronauts were the first to witness an earthrise.
Compound of 地球 (Earth) + の (possessive particle) + 出 (rising, coming out). Calque of English 'earthrise', likely coined in the context of space exploration.