A supernova remnant (SNR) discovered by astrophysicist Miroslav Filipović of Western Sydney University displays an astonishingly spherical shape.

'One of the most geometrically perfect': What is this mysterious sphere deep in the Milky Way galaxy?

Source: space
Source Link: https://www.space.com/astronomy/one-of-the-most-geometrically-perfect-what-is-this-mysterious-sphere-deep-in-the-milky-way-galaxy