Well, this is a bummer: It looks like Sirius B doesn’t have any extant jovian gas giant planets.
Sirius B is the closest white dwarf to Earth, the leftover innards of a star like the Sun after it goes all red giant, blows off its outer layers, and reveals its dense core to space. And I do mean dense; Sirius B has the mass of the Sun packed into a ball about the same size as Earth.
Published on May 18, 2022 06:00