Kim was working in biology and public health when she was hired for a job with NASA's Chandra X-ray Observatory in 1998. Since she always wanted to be an astronaut when she was little, this opportunity got Kim close to the cosmos but without the hazards of a long distance commute. Today, Kim uses data to tell stories about science, whether in the form of a 3D model of an exploded star, a tweet about how fireflies glow, or a book about light. Kim's latest book "Magnitude: The Scale of the Universe," ( Magnitude: The Scale of the Universe) co-authored with Megan Watzke will be out November 7, 2017!