The word "discovery" literally means uncovering something that's hidden from view. But what really happens is a change in the viewer. The familiar offers comfort few can resist, and fewer still want to disturb. However, as relatively recent inventions like the telescope and microscope have taught us, the unknown has many layers. Every truth has geological strata, and you can't have an orthodoxy without a heresy.
The moment a newborn opens its eyes, discovery begins.
I learned this with a laugh one morning after delivering a calf. When it lifted its fluffy head and looked at me, its eyes held the absolute bewilderment of the newly born. A moment before, it had known only the even black nowhere of the womb, and suddenly its world was full of colour, movement, and noise. I've never seen anything so shocked to be alive.