Mystery #2Tier 2-3space / stars / light
If space is packed with countless stars, why is the night sky mostly black?
Imagine standing in a gigantic forest. Look in any direction and eventually your gaze lands on a tree, so you see trees everywhere. Space is stuffed with countless stars, so in every direction your line of sight should end on a star, and the whole sky should blaze with light. Yet the night sky is mostly black. Why?
Your guess
Why do you think all those stars don't fill the sky with light?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
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