How do my eyes adjust to the dark and how long does it take?

Even if it’s only dim starlight, that’s enough for your eyes to detect. What’s truly amazing is how little light is required ...
The Conversation

Curious Kids: if our eyes see upside down, how does the brain flip the picture?

Our eyes work thanks to light. Objects we can see are either sources of light themselves – like a candle or a phone screen – or light bounces off them and makes its way to our eyes. First, light ...