The Black Marble
![NASA's Black Marble photos: Earth at Night](https://www.joshuacripps.com/wp-content/uploads/2012/12/world-at-night.jpg)
Since I am an ex-aerospace engineer it can be safely assumed that I am a space geek. My favorite class in college was orbital dynamics (followed by astronomy), and I had photos of galactic clusters plastered up on my dorm room walls. Even though I’ve been out of the engineering world for a few years, […]