Why didn’t the star die?
In 2018, two studies looked at the light that rebounded off interstellar dust as it made its way to Earth. This is called a light echo, and the delay when compared to the light taking a direct route allows experiments to be conducted many decades later. Astronomers at the University of Arizona’s Steward Observatory and Armin Rest of the Space Telescope Science Institute in Baltimore, Maryland, both found that the eruption in the 1840s may have been due to a three-way fight. Papers suggest that there were three
