https://www.khanacademy.org/science/shs-physical-science/x0492729e402f0c6b:4th-quarter/x0492729e402f0c6b:evolving-models-of-the-universe/a/the-geocentric-universe 2021-04-29T07:58:59Z The geocentric universe article https://www.khanacademy.org/science/shs-physical-science/x0492729e402f0c6b:4th-quarter/x0492729e402f0c6b:evolving-models-of-the-universe/a/the-heliocentric-model 2021-04-29T07:51:13Z The heliocentric model article https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-in-space/x87d03b443efbea0a:earths-place-in-the-universe/v/earths-place-in-the-universe 2024-01-04T21:44:22.995765104Z Earth's place in the universe Humans have used models to understand Earth's place in the universe. The geocentric model, placing Earth at the center, was replaced by the heliocentric model, with the sun at the center. This change better explains the movement of celestial bodies and shows that Earth's rotation causes the sun's apparent motion. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/367f5f88-2954-4708-a8a2-1ea2aa569771_1280_720_base.png Earth's place in the universe Humans have used models to understand Earth's place in the universe. The geocentric model, placing Earth at the center, was replaced by the heliocentric model, with the sun at the center. This change better explains the movement of celestial bodies and shows that Earth's rotation causes the sun's apparent motion. https://cdn.kastatic.org/ka-youtube-converted/Pv0Re0YEEq0.mp4/Pv0Re0YEEq0.mp4 294 Geocentric and Heliocentric model of the universe https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-in-space/x87d03b443efbea0a:earths-place-in-the-universe/a/earths-place-in-the-universe 2025-08-13T04:01:09.814076401Z Earth’s place in the universe Review your understanding of Earth's place in the universe in this free article aligned to NGSS standards. article https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-in-space/x87d03b443efbea0a:earths-place-in-the-universe/e/understand-earths-place-in-the-universe 2026-03-11T01:50:44.937458787Z Understand: Earth's place in the universe Check your understanding of Earth's place in the universe in this set of free practice questions aligned to NGSS standards. Lauren Rosebrugh exercise