... Chandra finds new evidence on origin of supernovae . The latest Chandra results support that a white dwarf pulls material from a т??normal,т?? or Sun-like, companion star until a thermonuclear explosion occurs. ... The discovery, made using NASAт??s Chandra X-ray Observatory, also provides strong evidence that a star can survive the explosive impact generated when a companion star goes supernova. ... In this case, no companion star or evidence for material blasted off a companion should exist. ...