I can be found in the core of stars, yet I am not always what I seem. What am I?

Category: Science · Difficulty: medium

Hint: Think about what makes balloons float.

Answer

Helium

Explanation

Helium is a light gas that is produced in stars through nuclear fusion, yet it's often associated with balloons.

This is a medium science riddle — a moderate challenge for most people. The answer is Helium.

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