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  1. Gravity
    • According to 2 sources
    It all comes down to gravity. No matter how irregularly shaped an object is, its self-gravity pulls equally in all directions.
    So what makes these celestial bodies round? In short, it's gravity. "It's pretty amazing that we know of so many things being round in space," Anjali Tripathi, an astrophysicist at NASA 's Exoplanet Exploration Program, located at the Jet Propulsion Laboratory in California, told Live Science.
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  3. Why are stars round? The science of stellar shapes - YouTube

  4. Why are things in space round? - Live Science

    Nov 13, 2023 · Gravity's rounding effect is a result of self-gravity, the gravity that an object — in this instance, a celestial body — exerts on itself. Once a planet, or maybe a moon, accumulates enough...

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

  6. why are the stars, planets and moons round, when comets ...

  7. Stars Versus Planets: What’s the Difference - Star Walk

    Dec 13, 2023 · Both stars and planets are massive, large, and round, and look almost the same to the naked eye from the Earth. Yet they're entirely different objects. What makes them different?

  8. Why Are Planets Round? - Science Notes and Projects

    Mar 12, 2024 · While planets are spherical, they are not perfectly round. They are slightly flattened, bulging at the equator. Two main factors cause this deviation from perfect roundness: Rotational Flattening: As a planet rotates, …

  9. Why Are Planets Round? | Britannica

    The Sun and all eight planets of the solar system are round. Why? The gravitational force of a planet’s mass pulls all of its material toward the center, smoothing out any jarring non-roundness. Many of the smaller bodies of the …

  10. The reason why planets are round explained - BBC Sky …

    The short answer as to why the planets are around is simply gravity! Gravity is the main force that sculpts the Universe, causing the formation of planets, stars and galaxies. It works over great distances and has no preferred orientation.

  11. Stars, Planets, and Moons: Why Celestial Bodies Are …

    Nov 26, 2021 · Why Planets, Moons, and Stars Are Round? For thousands of years, humans have known that Earth, our planet, is round. Just as the Sun and the Moon appear to be round, so does every planet...