Is "round" the only allowable shape for planets?
Briefly

"Every planet we've measured is round, and the same seems to hold for exoplanets as well, at least, to the best precision we've been able to measure them."
"Above a certain size, all objects become round due to the physics of hydrostatic equilibrium, which governs the shape of large celestial bodies."
"It's possible for any amount of normal matter to clump and bind together under the laws of the fundamental forces in the Universe."
"The question arises: why haven't we found planets shaped like a cube or pyramid? The answer lies in the science governing large masses in our Universe."
Read at Big Think
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