Eta Carinae is supermassive star. Our sun is an ordinary star. It is very special for us but related to the universe it is an ordinary star. Its end will be in an ordinary way. 99% of the stars in our universe are like our sun. But some stars are huge mass wise. Their mass is 8 times, 10 times or even more than the mass of our sun. The end of these stars is dramatic which is called supernova. We have an amazing opportunity to study a star before supernova. The name of this star is ‘ETA CARINAE’.