Catch a failing star: the tense wait for a supernova -
The 16th-century Danish astronomer Tycho Brahe, from the 1879 Barcelona edition of La Ciencia y sus Hombres by Louis Figuier.The most common type of supernova occurs when a very large star runs out of fuel, halting the nuclear fusion process that keeps it shining. The star’s outer layers fall inwards, and protons and electrons are crushed together to form neutrons that become packed into a superdense ball.
. East Asian and Arabic records indicate there were supernovae in 1006, 1054 and 1181, while European documents recall ones that occurred in 1572 and 1604.and was observed by the Danish astronomer Tycho Brahe. “Overhead, a certain strange star was suddenly seen, flashing its light with a radiant gleam,” he recalled.
“A supernova sends shock waves across a galaxy and these strike clouds of gas and dust in space, compressing them so that proto-stars start to form at their centres. Eventually, nuclear fusion begins, igniting a star’s store of hydrogen and it starts to shine. Planets form and orbit the star. That is probably how our sun and solar system came into existence.”
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