automaton clock, marionette clock

passion fruit flower

(astronomy) cosmic background radiation

an astronaut (member of the crew of a spaceship or other spacecraft, or someone trained for that purpose)

xenobiology (speculative biology of extraterrestrial life)

(engineering) aerospace engineering

space probe

Synonym of 天体物理学 (tentai butsurigaku, “astrophysics”)

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

National Aeronautics and Space Administration; NASA