NASA @NASA
Pops of green & blue scintillate from this image of the (appropriately named) Fireworks galaxy. Observed by our NuSTAR space observatory, these x-ray flashes were generated by some of the most energetic processes in the universe — including supernovas. https://t.co/V8Ybdydz7Y https://t.co/96j8T7SoOg — PolitiTweet.org