Labels:text | screenshot | font OCR: WHITE DWARFS WHEN A RED GIANT dies, it sheds up matter resists further compression: to 90 percent of its mass, which then the core has become a white dwarf forms a planetary nebula around the with, at most, 1.4 solar masses and collapsing core. As the core shrinks, its a volume similar to that of the Earth. matter becomes compressed far more White dwarfs are so dense that a single than matter could ever be compressed teaspoonful of their matter would on Earth. At a certain point, the core's weigh as much as 1.4 tonnes (1.5 tons). Nucleus Electron COLLAPSING CORE WHITE DWARF Carbon atoms with a normal As the atoms are compressed, their atomic structure are pulled toward nuclei and electrons become more the center of the core by gravity. and more closely packed together. SELECTED STARS