It turns out all human ... of their eye ... there's really only (this) one type of pigment," says Dr. Gary Heitling. Melanin levels also determine our skin and hair color. While dark brown in ...

Editor’s Note: This feature is part of Colorscope, an award-winning series exploring our perception of color and its use across cultures, one shade at a time. See more here. When you’re next ...

A brown spot on ... if you have a specific human leukocyte antigen. Depending on the location of the melanoma, a doctor will surgically remove the affected area of the eye, or in very rare cases ...

so too does light passing through the front part of the eye. This distortion is inconsequential on the scale of human vision, but poses a significant barrier in the microscopic realm of medical ...

Created by New York-based art collective MSCHF, the handbag is less than 0.03 inches wide and is so small that it’s hardly visible to the human eye when ... just sold a "Microscopic Handbag ...