When a blue supergiant star explodes in a supernova, it can spawn exotic states of matter like quark-gluon plasma, scientists have found. Blue supergiant stars are colossal, ...

The supernova is the remnants of a blue supergiant star called Sanduleak–69 202. It was believed to hold a mass about 20 times that of the sun before the explosion was detected in February 1987.

Rare blue supergiant stars are some of the hottest, brightest stars in the universe. But other distant supernovas have shown that before they exploded, stars ejected dense clouds decades beforehand.

Rare blue supergiant stars are some of the hottest, brightest stars in the universe. But other distant supernovas have shown that before they exploded, stars ejected dense clouds decades beforehand.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.

SN 1987A gained notoriety when it exploded, giving off the power of over 100 million suns. Now, NASA is getting an up-close look at the supernova.