🤘 This heavy metal mini planet survived the death of its star 🤘
An artist's illustration of a planetary fragment orbiting a white dwarf star. By Sarah Kaplan Sarah Kaplan Reporter for Speaking of Science Email Bio Follow April 4 at 2:00 PM This is what will happen when our sun dies:
The strange, shattered world, described Thursday in the journal Science, is only the second body ever found orbiting this type of dead star. It is evidence, scientists said, of what happens to planetary bodies when their suns go extinct — a fate that awaits most solar systems in the universe, including our own.
He was surprised to see regular disruptions in the disk — a stream of gas not unlike what comes from a comet’s tail. A year of observations showed that the gas kept showing up every two hours, like clockwork. Such a regular signal could only be produced by a “planetesimal,” or planet fragment, orbiting the extinct star and somehow blowing off gas.
There is one world in our solar system like this: the all-metal asteroid 16 Psyche. Scientists think this strange body was once the iron heart of a larger planet whose rocky crust and molten mantle were stripped away.
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