Astronomers captured the clearest view yet of Pa 30, the likely remains of a stellar explosion witnessed nearly 850 years ago. New observations from the Gemini North telescope on Maunakea in Hawai‘i reveal the most detailed view yet of Pa 30, a supernova remnant about 7,500 light-years away. Its distinctive streaks of gas look like sparks shooting outward. But zoom in, and those seemingly smooth trails turn …