Red Planet Day, November 28, recognizes the planet which has captivated human observers for countless years, Mars. Right now, we know that Mars is red thanks to photographs beamed back to Earth from American rovers.
For centuries, the naked human eye has been able to detect the reddish tinge of the solar system’s fourth planet, glimmering in the night sky. Little did scientists know, the red on Mars’ surface came from a preponderance of iron oxide, common rust. On Red Planet Day we celebrate our fascination with Mars, along with all the scientific advancements in understanding the dusty planet.