Final answer:
Earth resides in the solar system, which orbits within the Milky Way galaxy. Far from holding a central position, Earth is just one of the many planets circling the Sun, itself an average star among billions in the galaxy.
Step-by-step explanation:
Earth's home in the universe is within the solar system, which is a collection of planets, including Earth, that orbit our Sun. The solar system itself exists inside the Milky Way galaxy, a vast collection of stars, gas, and dust bound together by gravity. Earth is not at the center of the solar system or the Milky Way; instead, it is merely one of several planets orbiting the Sun, which is located in one of the galaxy's spiral arms, far from the galactic center.
The Copernican Principle clarifies that Earth does not hold a central or unique position in the solar system or the galaxy. This principle was solidified by observations such as those made by Galileo, who, with the help of a telescope, demonstrated that Earth is one of many bodies that orbit the Sun. The concept that Earth is the center of the universe is a long-discarded idea, disproven by centuries of astronomical research and observation.