Nebulae , Supernovas and Stars ✨
Supernovae are neutrino factories. In a 10-second period, a core-collapse supernova will release a burst of more than 10^58 neutrinos, ghostly particles that can travel undisturbed through almost everything in the universe. A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, the term was used to describe any diffused astronomical object, including galaxies beyond the Milky Way. A star is a very large ball of bright glowing hot matter in space. That matter is called plasma. Stars are held together by gravity. They give out heat and light because they are very hot.
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