YOU SAID:

the sky has fallen down and space is colliding with the ground

INTO JAPANESE

空が落ちて宇宙が地面に衝突している

BACK INTO ENGLISH

The sky is falling and the universe is crashing into the ground

INTO JAPANESE

空が落ち、宇宙が地面に激突している

BACK INTO ENGLISH

The sky is falling and the universe is crashing into the ground