They use JWST to explore its earlier results of the cepheid/supernova distance ladder. This has been used to establish distances across the cosmos using Cepheid variable stars and Type 1a supernovae.

Mystery of zombie star’s filaments explored by astronomers Spiky filaments extend three light-years from star’s core Pa 30 nebula’s structure reveals a strange 3-layer formation ...

Scolnic and his team used the spectrum of wavelengths and intensities from the galaxies that matched those of a dozen Type Ia supernovae; the radiant death throes of stars blazing in a characteristic ...

Because type 1a supernovae produce consistent peak brightness, measuring their brightness when observed from Earth can reveal how far away they are. "Type Ia supernovae are extremely valuable in ...

The recent photographs are helping scientists answer some of their most pressing questions about supernovae, such as which types of stars explode in which ways and how exactly those outbursts unfold.

The main topic of Ashraf Uddin's discussion was determining the Hubble Constant, which is the rate of expansion of the universe, through the observation of Type 1a supernovae. For the convenience of ...

That’s what astronomers face when measuring the Hubble constant. When they use nearby objects like supernovae and galaxies to measure this expansion, they find the universe is stretching at about ...

This supernova, detected as part of the JWST Advanced Deep Extragalactic Survey (JADES) program, could help scientists add more detail to the cosmic picture of stellar life and death they are ...