astronomer

astronomical (relating to astronomy) / astronomical (vast)

impossible to understand, utterly confused

stairs used in emergencies

state of emergency (unusually difficult or dangerous situation)

radio clock

(slang) denpa-kei person: one who acts strangely (disconnected from reality), often having wild fantasies and often saying strange things

denpa song, a Japanese genre of catchy electronic music featuring cute vocals and nonsensical or unusual lyrics.

walk in space

space walk