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White dwarfs

According to the new paper, in some white dwarfs, the dense plasma in the interior doesn't simply freeze from the inside out. Instead, the solid crystals that form upon freezing are less dense than the liquid, and therefore want to float, then push
A white dwarf provides insights into the systemic chaos that occurs when a star dies
"If rocky planets exist around white dwarfs, we should be able to detect signs of life on them in the coming years," said co-author Lisa Keltenger, associate professor of astronomy in the College of Arts and Sciences and director of the Carl Sagan Institute.
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