It is a well-known fact that rotating planets have a flattened spheroidal shape. However, the NASA site says about Haumea:
The fast spin distorts Haumea's shape, making this dwarf planet look like a football.
Haumea rotates especially quickly, and its shape is an ellipsoid with 3 different axes. Does one in fact cause the other? If a planet rotates very quickly, can its shape be distorted to something not symmetrical around the axis of rotation?
It looks counter-intuitive to me. Imagine a thought experiment: we spin up a big planet gradually, while letting it assume hydrostatic equilibrium all the time. How will its shape change until it falls apart? My common sense tells me it will be flattened more and more, and its larger radius will approach infinity. But NASA says that it will assume a different shape at some point.
What gives?