What Is a Protoplanetary Disk? The Cosmic Structure That Builds Entire Planets
Автор: FactSnack
Загружено: 2026-01-13
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What is a protoplanetary disk, and how do planets actually form?
Before Earth, Jupiter, or any known world existed, they all began inside a spinning disk of gas and dust surrounding a newborn star.
In this video, you’ll learn what a protoplanetary disk is, how it forms after a star is born, and why it plays a crucial role in creating rocky planets and gas giants. We’ll explore how microscopic dust grains slowly grow into planetesimals and eventually become full-sized planets. You’ll also discover why some planets form close to stars while others form far away, and how modern telescopes can actually observe these disks in distant star systems.
If you’re curious about space, astronomy, planetary science, and the origins of solar systems, this video will completely change how you see planet formation.
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