Science Common Sense


1405 - What scales are objects in the universe divided into?

Objects in the universe are usually divided into these scales:

  1. Atomic scale: tiny things like atoms and molecules, like the air we breathe.
  2. Human scale: objects we can see and touch, like cars, houses, and people.
  3. Terrestrial scale: the Earth, mountains, and big natural things.
  4. Planetary scale: planets and moons in our solar system.
  5. Stellar scale: stars, like our sun, and galaxies they are part of.
  6. Galactic scale: galaxies, like the Milky Way, and groups of galaxies.
  7. Cosmic scale: the whole universe, including everything in it.

These scales help us understand the huge differences in size between objects in the universe.