The Red Square Nebula is a celestial object located in the area of the sky occupied by star MWC 922 in the constellation Serpens.

The first images of this bipolar nebula, taken using the Palomar Observatory Hale Telescope in California, were released in April 2007.

It is notable for its square shape, which according to Sydney University astrophysicist Peter Tuthill, makes it one of the most nearly discrete-symmetrical celestial objects ever imaged.

One possible explanation is that these spokes are shadows cast by periodic ripples or waves on the surface of an inner disk close to the central star.

But the hot star at the heart of the Red Square nebula, called MWC 922, appears to be relatively massive, suggesting another process formed its signature shape.