Gravity and the solar system | Middle school Earth and space science | Khan Academy

Evidence suggests that our solar system was formed from a huge cloud of gas and dust, pulled together by gravity. This process formed the Sun and the objects that orbit around it. The shape of an orbit is called an ellipse. As an object completes an orbit, its distance to the Sun changes. The closer it is to the Sun, the faster it moves. Different objects orbit different distances from the Sun. The farther an object orbits from the Sun, the more time it takes to complete an orbit. Next Generation Science Standards (NGSS):MS-ESS1-2, MS-ESS1.B.1, MS-ESS1.B.3, MS-PS2.B.2 ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc