The hypergiant star VY Canis Majoris will likely have exploded in a hypernova. The proper motion of stars across the celestial sphere, which is the result of their movement through the Milky Way, renders many of the constellations unrecognisable. Earth will likely have undergone a supervolcanic eruption large enough to erupt 400 km3 (96 cubic miles) of magma. For comparison, Lake Erie is 484 km3 (116 cu mi). As one of the long-term effects of global warming, 10% of anthropogenic carbon dioxide will still remain in a stabilized atmosphere. (100,000+)