An article published in the journal “Monthly Notices of the Royal Astronomical Society: Letters” reports the discovery of the white dwarf with the fastest known rotation speed. A team of researchers used the HiPERCAM instrument mounted on the Gran Telescopio Canarias (GTC) to measure the rotation speed of the white dwarf cataloged as Lamost J024048.51+195226.9, or simply J0240+1952. Its rotation in 24.93 seconds makes it the fastest in its class. The examination also made it possible to establish that it’s a magnetic propeller system in which the white dwarf steals gas from a companion and then ejects it into space at very high speeds because of its intense magnetic field.