🚀 Space
How can we tell how old the universe is?
👶 Short Answer (For Little Kids)
We can tell by looking at the oldest light from stars.
🧠Detailed Explanation (For Older Kids)
Scientists figure out the age of the universe by studying the oldest light, called the cosmic microwave background. It's like looking at a picture of the universe when it was just a baby and using that to calculate how much time has passed since then.
âš¡ Quick Facts
- Related to: universe
- Related to: age
- Related to: stars
