A massive stellar wind bubble sculpts the nebula into the shape of the Norse god's famous helmet.

Astrophotographer spies Thor's Helmet shining 15,000 light-years away in spectacular photo

Source: space
Source Link: https://www.space.com/stargazing/astrophotography/astrophotographer-spies-thors-helmet-shining-15-000-light-years-away-in-spectacular-photo