space alien; alien; extraterrestrial being
outer space; void of space
space development; space exploration
whole universe; total universe; all of creation
macrocosmos; macrocosm; the universe; the cosmos
space flight; spaceflight
cosmo-chemistry; space science
escape velocity; orbital velocity; cosmic speed; space velocity
(since) the beginning of the universe; (since) the dawn of time
one's outlook on the universe
space dust; cosmic dust; interstellar dust
space debris; orbital debris
space development project (program, programme)
ultimate fate of the universe; end of the universe
National Space Development Agency; NASDA
space debris; orbital debris
particle horizon of the observable universe
cosmo-chemistry; space science
cosmic background radiation
space debris; orbital debris
automated cargo spacecraft; unmanned resupply spacecraft
cosmic distance ladder; cosmological distance ladder
cosmic microwave background radiation
cosmic distance ladder; cosmological distance ladder
space environmental pollution
cosmic censorship hypothesis; cosmic censorship conjecture
cosmic censorship hypothesis; cosmic censorship conjecture