NASA’s Hubble Uncovers Rare White Dwarf Merger Remnant
In August 2025, a manuscript led by Snehalata Sahu at the University of Warwick and including members of the BUWD group (Sahu et al. 2025) announced the discovery of carbon in the atmosphere of an otherwise normal-looking hot hydrogen-rich white dwarf, a tell-tale sign of a merger in the history of the system. The discovery could not have been made without the ultraviolet capabilities of the Hubble Space Telescope. The discovery was featured in a video summary by NASA Goddard, as well as with a NASA/ESA press release and subsequent news coverage by Popular Science and Space.com. The manuscript has been accepted in Nature Astronomy.