https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:space-science/x0e04e0cb682fb793:the-solar-system/v/the-solar-system-ms 2024-01-04T21:44:22.995765104Z The solar system Our solar system, formed from a nebula, consists of the sun, eight planets, asteroids, and comets. The inner planets, Mercury, Venus, Earth, and Mars, are rocky, while the outer planets, Jupiter, Saturn, Uranus, and Neptune, are gas giants. The asteroid belt separates these two groups, and the Oort cloud, filled with comets, lies beyond Neptune. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/b8fab4c8-cc6b-4c1c-808c-ae49dbbe513d_1280_720_base.png The solar system Our solar system, formed from a nebula, consists of the sun, eight planets, asteroids, and comets. The inner planets, Mercury, Venus, Earth, and Mars, are rocky, while the outer planets, Jupiter, Saturn, Uranus, and Neptune, are gas giants. The asteroid belt separates these two groups, and the Oort cloud, filled with comets, lies beyond Neptune. https://cdn.kastatic.org/ka-youtube-converted/wTyqO-tfs7Q.mp4/wTyqO-tfs7Q.mp4 296 Solar system https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:space-science/x0e04e0cb682fb793:the-solar-system/e/understand-the-solar-system 2026-06-12T11:30:42.866445152Z Understand: The solar system Check your understanding of the solar system in this set of free practice questions aligned to NGSS standards. Lauren Rosebrugh exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:space-science/x0e04e0cb682fb793:the-solar-system/a/the-solar-system 2026-04-27T10:30:47.716252349Z Key points: The solar system Review your understanding of the solar system in this free article aligned to NGSS standards. article https://www.khanacademy.org/science/grade-7-science-cambridge-curriculum/x754b285620daf71e:earth-and-space/x754b285620daf71e:earth-and-solar-system/a/how-was-our-solar-system-formed 2025-07-05T01:14:45.343127054Z How Was Our Solar System Formed? article https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:space-science/x0e04e0cb682fb793:the-solar-system/a/how-our-solar-system-formed 2023-05-05T21:01:11.640988085Z READ: How Our Solar System Formed article https://www.khanacademy.org/science/grade-7-science-cambridge-curriculum/x754b285620daf71e:earth-and-space/x754b285620daf71e:earth-and-solar-system/a/features-of-planets 2023-07-06T18:33:28.586154171Z Features of Planets article