Mon Prof Augmenté
Spinning Cloud to Sun and Planets
A huge cloud of gas and dust spun in space. Gravity pulled it inward, making a bright center and a flat swirling disk where small clumps grew into planets.
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Age 12: open this week
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In the picture
- Bright central sphere: the young Sun gathering most of the cloud’s mass.
- Swirling disk of gas and dust: the flattened cloud spinning around the center.
- Small clumped sphere: dust and gas sticking together into a growing planet.
- Curved arrows: material flowing around the center in the same direction.
Examples
- A whirlpool in a sink pulls floating bits toward the center while the water spins.
- A snowball rolling downhill gathers more snow and grows larger.
Key takeaways
- Gravity can pull a cloud of gas and dust together.
- The center became the Sun, while the spinning disk formed orbiting planets.
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
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