Here's the breakdown:
* Light travels through the atmosphere: We see the sun and stars because light travels through the atmosphere to reach our eyes.
* Light travels through transparent materials: Light can pass through glass, water, and even certain types of rock.
* Light is absorbed and scattered: While light can travel through Earth, it doesn't always travel in a straight line. Some light is absorbed by materials, and some is scattered in different directions. This is why we can't see through the Earth's core.
So, while light can travel through Earth, it doesn't travel through the entire planet in a way that we can see.
