White dwarfs shed light on dark matter BY JEFF FOUST SPACEFLIGHT NOW Posted: March 23, 2001 A white dwarf, WD 0346, first reported by Nigel C. Hambly and Simon T. Hodgkin in 1997 and subsequently identified as a blue cool white dwarf, an unusual beast that turns bluish as it cools below about 4,000 Kelvin. The cross-hairs follow the star over the course of 43 years as it exhibits proper motion ...