Learn about the explosions that often occur at the end of a white dwarf star's life, allowing scientists to study the acceleration of the universe.

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

The brighter the star is overall, the longer the period of luminosity. Since the cepheids in the Magellanic Clouds were all about the same distance from Earth, Leavitt concluded that the period ...

Sirius, the Dog Star, is difficult to ignore. Ostentatiously scintillating on the southern horizon right now, the “Searing ...

within a specific luminosity range. Between June and September 2023, Swift J0243.6+6124 went into an outburst phase during which the neutron star exhibited a spin-up state and variations in its ...