Pictures of a distant supernova remnant show two concentric rings, providing clear evidence that exploding white dwarf stars ...

Type Ia supernovae have revealed much about the nature of our universe — including the ... do contain hydrogen because these suns still have ample reserves of unfused hydrogen near their surface.

It was shortly confirmed as a Type Ia supernova in the Pinwheel Galaxy, some 21 million light-years distant. That's unusually close by cosmic standards, and the nearest SN Ia since 1986; it was ...

The supernova remnant in question is MC SNR J0519–6902, first discovered in 1981. This wreckage has a ring-like structure that is around 26 light-years in diameter — that's wide enough to fit ...

A composite image shows the remains of supernova SN 1181, a cataclysmic collision of two stars. The spherical nebula has at its center a hot white dwarf, or "zombie star," left behind after the ...

It has one of the lowest recorded surface brightness levels among ... The scientists behind the study try to explain the lack of X-ray emissions by suggesting Teleios is a Type Ia supernova, ...

We began to suspect Supernova 2020eyj belonged to a rare subclass of Type Ia supernovae in which the blast wave, moving at more than 10,000 kilometers per second, sweeps past gas that could only ...

"If a significant fraction of Type Ia supernovae produce a D6 star, the galaxy has likely launched more than 10 million of them into intergalactic space," the researchers wrote in the study.

In the more common Type Ia supernova, ... Ko added: High-speed stellar wind seems to have started blowing from the surface of the star just 20 to 30 years ago. ...

In the more common Type Ia supernova, a white dwarf that forms when a sunlike star has exhausted its fuel begins to accumulate material from another nearby star. Many stars exist in pairs, or a ...