At 200,000 light years across, NGC 1365 is one of the largest known galaxiesESO/IDA/Danish 1.5 m/ R. Gendler, J-E. Ovaldsen, C. Thöne, and C. Feron By Ken Croswell You may be able to thank the Milky Way’s spiral arms for supplying Earth with a fair share of the vital element […]