![White Dwarf Stars images taken by NASA's Hubble Space Telescope](http://static.sciencelearn.org.nz/images/images/000/003/256/full/White_Dwarf_166660main_image_feature_734_ys_full.jpg?1674170386)
A white dwarf is a small, very dense, hot star that is made mostly of carbon. These faint stars are what remain after a red giant star loses its outer layers. They are about the size of the Earth and will eventually lose their heat to become a cold, dark black dwarf. The sun will eventually turn into a white dwarf and then a black dwarf.
Acknowledgement: NASA and H.Richer (University of British Columbia)