MediumScience
"I shine brightest in the dark. I have burned for billions of years yet you can cover me with your thumb. I am enormously far away yet I guide sailors home. What am I?"
Answer
A Star
Explanation
Stars are only visible at night. They burn as nuclear furnaces for billions of years. Despite their incomprehensible size and distance, you can block one from view with your thumb. The North Star has guided navigators for millennia.
This is a medium riddle in the Science category — Riddles about physics, space, biology and the laws of the universe.
Tags:naturespaceclassic
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