The Hubble telescope’s Deep Field image from 1995 is one of the most important images in human history.

I’ve been fascinated by it since I first heard about it in a talk by the neuroscientist, David Eagleman. (Great talk. Add it to your must watch list.)

I regularly bring up the Hubble Deep Field image when I speak to audiences, especially high school students. It never fails to get a reaction when I tell the story then display the Deep Field slide. posted a video feature last week telling the story of how the Deep Field image was captured.

In an empty speck the size of a pinhead in the night sky Hubble found thousands of galaxies.

It showed us just how vast and gloriously, mysteriously interesting the universe is.

If you need a dose of perspective, look up into the night sky and see how small you are. But see also that you are part of — a wonderfully conscious part of — a grand universe filled with more to learn than we ever could in the limited time we have.