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The quick layman's answer is 'gravity'. Imagine an object with the same over-all density and mass as the earth, only it is in the shape of a solid cylinder 100 miles in diameter. It would be (for just a brief moment) like a wire stretched out over a very long distance. It could never maintain such a shape; the object would still have gravity, and the ends would quickly and catastrophically collapse toward the center. This would be quite a thing to witness. By the time all the crashing and exploding comes to an end, the mass would be roughly spherical. This is just to visually illustrate the idea of gravity pulling the mass into a spherical shape; in fact some of the impacts may be so great that some of the material might be propelled at such a velocity that it would never return.
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What are inner planet shapes?
The inner planets have a spherical shape. In fact all planets are more or less spherical.
What causes the earth and other planets to have more or less spherical shape?
Spherical but also flat on the top and bottom
What is the shape of dense bodies the size of planets or larger?
Approximately "spherical".
Is the planet Venus spherical?
Yes, all planets are spherical. They all have a slight bulge at the equator due to rotation, but are almost perfect spheres.
What shape are sun earth and other planets?
They would be considered as 'spherical' celestial bodies. round
What shape are planet?
The inner planets have a spherical shape. In fact all planets are more or less spherical.
Which planets has more of a spherical shape?
There are two planets with an almost perfectly spherical shape. They are Mercury and Venus.
What is the typiccall shape of the planets?
Planets are all spherical.
Are planets different shapes?
No. All planets are spherical.
What are planets and stars?
Spherical
What are inner planet shapes?
The inner planets have a spherical shape. In fact all planets are more or less spherical.
What shape are planets and stars?
Spherical
Are gassy planets really planets?
Yes! As long as it is massive enough to form a spherical shape with it's own gravity, and not so massive that it becomes a star, and revolves around a star itself, it is considered a planet.
Why are your planets spherical?
due to own gravitational force
What causes the earth and other planets to have more or less spherical shape?
Spherical but also flat on the top and bottom
What is the shape of dense bodies the size of planets or larger?
Approximately "spherical".
What is the shape of dense body is the size of planets or larger?
Approximately "spherical".
