Ep20. Why did the Big Bang happen? - Little Ears Big Idea...

What this episode covers

Why did the Big Bang happen and was it really a giant explosion? In this mind-stretching episode, Lily and Max explore one of science’s biggest mysteries in a kid-friendly way. They discover how the universe began expanding, why scientists think space was once extremely hot and dense, what clues are left behind from the early universe, and why some questions are still being investigated today. It is a cosmic adventure full of galaxies, mystery boxes, star confetti, and very big “why?” questions.

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Frequently Asked Questions

How long is this episode of Little Ears Big Ideas?

This episode is 10 minutes long.

When was this Little Ears Big Ideas episode published?

This episode was published on July 16, 2026.

What is this episode about?

Why did the Big Bang happen and was it really a giant explosion? In this mind-stretching episode, Lily and Max explore one of science’s biggest mysteries in a kid-friendly way. They discover how the universe began expanding, why scientists think...

Can I download this Little Ears Big Ideas episode?

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