T CrB is a binary system made up of a white dwarf (the remains of a dead star with a mass comparable to that of the Sun squeezed into an Earth-sized body) and an ancient red giant star.

R Doradus, a red giant with a diameter 350 ... with sizes 75 times larger than our Sun. The bubbles appeared on the star's ...

Type Ia supernovae originate in binary star systems—systems where two stars orbit each other. In one possible scenario, there are two stars approximately the same size—let's say about the size ...

A white dwarf is the dense, compact core remnant of a once sun-like star, packing a mass equivalent to that of a star into a volume about the size of Earth. A red giant represents an earlier stage ...

01 times that of our own sun ... Red giants are hot enough to turn the helium at their core, which was made by fusing hydrogen, into heavy elements like carbon. But most stars are not massive ...