White Dwarf StarsPushing the limits of its powerful vision, NASA's Hubble Space Telescope uncovered the oldest burned-out stars in our Milky Way Galaxy. These extremely old, dim "clockwork stars" provide a completely independent reading on the age of the universe.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/white-dwarf-stars/Copy URL to clipboard> DownloadShareSize1024x1024px