The familiar structure of the Lyra Nebula (or Ring Nebula) has just revealed an unexpected feature. At the heart of this ...
The Ring Nebula, also known as Messier 57, sits about 2,000 light-years from Earth. It is a planetary nebula—a misleading ...
A famous night-sky object has yielded a surprise: a narrow, bar-shaped cloud made of highly ionized iron. The discovery comes from a European team led by astronomers at University College London and ...