I found an answer from worldbuilding.stackexchange.com

reality check - Can a nonspherical planet exist and can it be ...

It's true that gravity will make a randomly-shaped blob of matter coalesce into a sphere over time, but there's no reason that it has to do so with a ...

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I found an answer from www.scientificamerican.com

Strange but True: Earth Is Not Round - Scientific American

Apr 12, 2007 ... Planet Earth is not, in fact, perfectly round. ... "There's also postglacial rebound, with the crust and mantle that were depressed by the huge ice ...

For more information, see Strange but True: Earth Is Not Round - Scientific American

I found an answer from en.wikipedia.org

Spherical Earth - Wikipedia

The earliest reliably documented mention of the spherical Earth concept dates from around the .... Some larger SSSBs are nearly round but have not reached hydrostatic ... Some of these phenomena and observations would be possible on other ... Astronauts in low Earth orbit can personally see the curvature of the planet, ...

For more information, see Spherical Earth - Wikipedia

I found an answer from en.wikipedia.org

Dyson sphere - Wikipedia

A Dyson sphere is a hypothetical megastructure that completely encompasses a star and ... These later proposals have not been limited to solar-power stations, with .... It has been proposed by Paul Birch (in relation to smaller "Supra-Jupiter" constructions around a large planet rather than a star) that it may be possible to ...

For more information, see Dyson sphere - Wikipedia

I found an answer from www.quora.com

What would it be like to live on a non-spherical planet? - Quora

For starters, the fact that the planet is non-spherical would imply that it has very ... Either way, you don't need to be worried about falling (remember, there is no ...

For more information, see What would it be like to live on a non-spherical planet? - Quora

I found an answer from spaceplace.nasa.gov

Why Are Planets Round? | NASA Space Place – NASA Science for ...

The eight planets in our solar system differ in lots of ways. They are different ... This makes the overall shape of a planet a sphere, which is a three-dimensional circle. ... First, make sure there are no obstacles around that you might bump into.

For more information, see Why Are Planets Round? | NASA Space Place – NASA Science for ...

I found an answer from www.quora.com

Is it possible to have a non-sphere planet or moon? - Quora

“A planet in the shape of a donut, or toroid, as it's called in mathematics, could technically exist, but it would have to jump some steep physics hurdles to get there ...

For more information, see Is it possible to have a non-sphere planet or moon? - Quora

I found an answer from www.reddit.com

Is there any possibilities of having non-spherical planets out there ...

Oct 10, 2014 ... We live on a not-exactly-spherical planet. The earth is spinning, which has squeezed it slightly, into an oblate spheroid. It is possible that there ...

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I found an answer from www.reddit.com

Is there any evidence that non-spherical planets can form either ...

By non-spherical, I don't mean a different shape entirely, but rather some sort of blemish on the planet that goes deeper than just its surface to...

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I found an answer from physics.stackexchange.com

Is it possible to build planet-sized non-spherical structures?

There also is a large difference between a large conglomerate object that ... The reason why planets are planet sized objects form a spherical ...

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I found an answer from worldbuilding.stackexchange.com

planets - How long can a moon remain non-spherical, and what ...

...the moon is always visible at night, and only at night,. A stable orbit that does this is impossible (there are however some compromises that ...

For more information, see planets - How long can a moon remain non-spherical, and what ...