Measuring distances across the universe is much more challenging than measuring distances on Earth. Is a brighter star closer ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

This is particularly true for one particular kind of supernova known as Type Ia. An overview of the different proposed Type Ia supernova progenitors has been published on the arXiv preprint server.

Designated SN 2023adsy, the newfound stellar explosion is the most distant Type Ia supernova so far detected. The finding was detailed in a research paper published June 7 on the pre-print server ...

Jeffery, E. Baron Publications of the Astronomical Society of the Pacific, Vol. 118, No. 842 (April 2006), pp. 560-571 (12 pages) ABSTRACT A comparative study of near–maximum‐light optical spectra of ...

The Hubble Space Telescope recently captured a snapshot of a rare supernova that sits in the Gemini constellation, about 650 ...

Measurements of the distance to the Coma Cluster of galaxies find that it is millions of light years closer than the standard ...

Most events in the BTS sample are classified into one of the two most common types: Type Ia supernova, when a white dwarf steals matter from a neighboring star until it explodes, or Type II supernova, ...

SN 2024PI is classified as a Type Ia supernova. This type of supernova requires a remarkable object called a white dwarf, the crystallized core of a star with a mass less than about eight times ...

SN 2024PI is special because it's classified as a Type Ia supernova. A white dwarf, which is an incredibly dense, small "dead" star (about the size of a planet), must exist before this special ...