Scientists discover four new stars right next to Earth: White dwarfs were hiding behind brighter red dwarfs; discovery made using Hubble's ultraviolet camera

Astronomers from the University of Warwick and University of Colorado Boulder have found four white dwarf stars hiding in binary systems within 65 light-years of Earth. The stars had gone undetected because brighter red dwarf companions were drowning out their light. One of the newly confirmed stars is now the ninth closest white dwarf to our Sun.