Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Astronomers may have solved the mystery of why dead stars' death shrouds seem to lack sulfur, an element once known as"brimstone" and associated with the expression"fire and brimstone" in the Bible. Based on theory, a substantial amount of sulfur should be present in stellar wreckage sites across the cosmos.
When stars have exhausted their fuel supplies needed for nuclear fusion processes happening at their cores, the energy that pushes outwards and protects each core from the immense inward pull of each star's own gravitational force, is also halted. Planetary nebulas are also short-lived, however, remaining wrapped around white dwarfs for only tens of thousands of years.
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