Cosmology is puzzled as to why two methods for measuring the expansion of the cosmos yield different results. A third method ...

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

NASA’s James Webb Space Telescope captured the first published detection of a supernova progenitor in galaxy NGC 1637, revealing a red supergiant star before explosion.

The Hubble Space Telescope captured imagery of supernova 2018 GV from 2018-2019. It was seen in barred spiral galaxy NGC 2525 ...

The powerful gravity of a galaxy embedded in a massive cluster of galaxies in this Hubble Space Telescope photo is producing multiple images of a single distant supernova far behind it. Both the ...

A deep space photographer spent months photographing the Crab Nebula and found his composite image, when compared with the 1999 image from the Hubble Space Telescope, shows the supernova's expansion.

Several telescopes used to observe the supernova SN Zwicky which was magnified nearly 25 times by a foreground galaxy acting ...

"Thanks to the high resolution of our new images, we detected a faint structure on the northeast side of this supernova remnant that had not been observed before." When you purchase through links on ...

The light from the explosion did not reach Earth till June 29, 2025, when the All-Sky Automated Survey for Supernovae detected it.