Quick answer: The Sun doesn’t go away at night. Earth turns, and the place where we live turns away from the Sun. While it’s nighttime for us, the Sun is shining on another part of Earth.
What to say to your child
“The Sun is still there! Earth slowly spins, like a ball turning around. During the day, our part of Earth faces the Sun. At night, our part faces away from it. When Earth turns toward the Sun again, we see the sunrise.”
You don’t need to explain everything at once. For a young child, “Earth turns, and the Sun shines on the other side” may be enough.
Show them with a flashlight
You can make the answer easier to see:
- Put a small sticker on a ball to mark where you live.
- Shine a flashlight on the ball. The flashlight is the Sun.
- Slowly turn the ball until the sticker moves out of the light.
When the sticker faces the flashlight, it’s daytime there. When it faces away, it’s nighttime. Keep the flashlight still as you turn the ball: Earth’s turning is what changes day to night.
What if your child asks, “Is it daytime somewhere else?”
Yes! While you’re getting ready for bed, people in some other parts of the world are enjoying daylight. Later, as Earth keeps turning, your part of the world will face the Sun again.
That makes a lovely bedtime thought: the Sun is still shining, even when we can’t see it.
A question for bedtime
After reading together, ask: “What do you think someone on the sunny side of Earth is doing right now?”
Your child might imagine someone eating breakfast, walking to school, or playing outside. It’s a gentle way to connect a big space idea to everyday life.
Goodnight Solar System can be part of that conversation. As you say goodnight to the wonders of space, you can remind your child that the Sun will be there when your part of Earth turns toward it in the morning.
The short answer to remember: The Sun doesn’t leave at night. Earth turns, and we turn away from its light.
