на другой планете

on another planet

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phrase Rare #45,146
on another planet Can also be used figuratively to describe someone or something as completely disconnected from reality.
RU: После переезда я чувствовала себя на другой планете.
EN: After moving, I felt like I was on another planet.

На другой планете!

On another planet!

— Центральный вокзал (1998)

Правительство на другой планете живет, родной.

The government lives on another planet, darling.

— Кин-дза-дза! (1986)

На другой планете.

On another planet.