A supernova is a brilliant end to a giant star. For a brief moment of cosmic time, a star makes one last effort to keep shining, only to fade and collapse on itself. The end result is either a neutron star or a stellar-mass black hole. We’ve generally thought that all stars above about ten solar masses will end as a supernova, but a new study suggests that isn’t the case.
Continue reading “Heavier Stars Might not Explode as Supernovae, Just Quietly Implode Into Black Holes”There Should Be More Iron In Space. Why Can’t We See It?
Iron is one of the most abundant elements in the Universe, along with lighter elements like hydrogen, oxygen, and carbon. Out in interstellar space, there should be abundant quantities of iron in its gaseous form. So why, when astrophysicist look out into space, do they see so little of it?
Continue reading “There Should Be More Iron In Space. Why Can’t We See It?”
