Complex sentence: Tsar Bomba ("Emperor Bomb") is the nickname for the AN602 hydrogen bomb, the most powerful nuclear weapon ever detonated and its October 30,1961 test remains the most powerful artificial explosion in human history.
Split into simpler sentences: Tsar Bomba ("Emperor Bomb") is the nickname for the AN602 hydrogen bomb, the most powerful nuclear weapon ever detonated. Its October 30,1961 test remains the most powerful artificial explosion in human history.