I could be way off base with my original assumption, but if light is shined in space it travels straight forward indefinitely (in theory). But if it is shined on something, it illuminates that object then goes away. So what happens to the light particles/energy. I hope this makes sense, I am struggling to find the words for my question.
Just wanted to throw in an edit and say thank you for the responses. It was very informative and I greatly appreciate that!
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Light doesn’t go away when it illuminates an object, and you can tell because the object is illuminated.
What you’re seeing is diffuse reflection. Unlike a mirror that reflects light at the same angle it came in, most objects reflect light a bit in every direction. That’s why the object appears lit up no matter where you’re seeing it from, there’s always a bit of reflected light in the direction of your eye. It’s also why you don’t see an image like in a mirror, because you’re seeing a jumble of reflections of light that originally came from a bunch of different directions.
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