Astrophysicists at the University of Warwick have discovered four white dwarf stars that are surrounded by cosmic dust from shattered planetary bodies. One star is in the process of consuming an Earth-like exoplanet.
Image credit: NASA and H. Richer (University of British Columbia)
Pushing 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.