The supernova was 16 times the brightness of Venus, and was observed in China, Japan, Iraq, Egypt, Europe, and possibly depicted in North American rock art. It was allegedly bright enough to read at night without any moonlight.
Astronomers have spotted the most distant and brightest "space laser" ever seen, and it's blasting from a galaxy collision that occurred when the universe was half its current age.
Astronomers have spotted the most distant and brightest "space laser" ever seen, and it's blasting from a galaxy collision that occurred when the universe was half its current age.