LONG BEACH, Calif., Jan. 10 (UPI) -- An international team of astronomers says analysis of NASA data on a distant stellar system has led them to crown it the largest-known spiral galaxy.
The spectacular barred spiral galaxy NGC 6872, long ranked among the biggest observed stellar systems, spans more than 522,000 light-years, making it more than five times the size of our Milky Way galaxy, they said.