The now–deceased star, dubbed M31–2014–DS1, was located around 2.5 million light–years from Earth in the neighbouring Andromeda Galaxy. In 2014, NASA telescopes recorded the distant star brightening ...

This popped up on my feeds. Over the last three years, a star went from fairly bright red to nothing. The analysis of the data suggests it was a direct collapse (no supernova) of a 13 solar mass star.

Once charted as a 'guest star' in ancient China, dreaded as a harbinger of ill omens in medieval Europe, and preserved in the narratives and artworks of Indigenous cultures, these cosmic spectacles ...