Trivia: What is it called when a large star explodes?
Ephemeris
Nebula
Supernova
Zenith
The correct answer is Supernova
So why is this answer correct? : Supernovas are the cataclysmic explosions of massive stars. The explosions are so big, they can emit more energy in a few seconds than our sun can radiate in its entire lifetime. In our Milky Way galaxy, which includes over 200 billion stars, supernovas occur around every 50 years but are seldom visible to the naked eye.