05-07-2013, 02:39 AM
http://www.ketknbc.com/news/why-gamma-ra...scientists
Incidentally, if not for supernovae, we wouldn't be here.
Every single atom of your body that is not hydrogen or helium was created in the fiery interior of a massive star. The supernova explosion disperses these elements throughout interstellar space, where they become the building material for new planets. When Earth formed out of such materials -- iron, manganese, calcium, silicon, oxygen, nitrogen, carbon, etc. -- organic chemicals, then cells, then organisms, then humans were able to evolve.
Incidentally, if not for supernovae, we wouldn't be here.
Every single atom of your body that is not hydrogen or helium was created in the fiery interior of a massive star. The supernova explosion disperses these elements throughout interstellar space, where they become the building material for new planets. When Earth formed out of such materials -- iron, manganese, calcium, silicon, oxygen, nitrogen, carbon, etc. -- organic chemicals, then cells, then organisms, then humans were able to evolve.