A human hair's width is about the smallest thing our eyes can see, unaided. But an ordinary microscope reveals detail in the micro world that looks quite different from our normal point of view.
You can see a flower and its parts in your garden, but it takes a microscope to reveal what is on those parts - things that a smaller organism, like a bee, would interact with. That micro world fascinates scientist Gary Greenberg.
He takes photos using the microscope (with different spots of focus) and uses a computer program to stitch them together into a single focused image.
NASA hired him to examine grains of sand from the moon. They are formed differently from sand on earth, and they look different.
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