Add Popular Science (opens in a new tab) Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Get the Popular ...

Mars has shone red in the night sky for as long as humans have gazed up at the cosmos, fascinating people from the ancient Romans to the present day. "The fundamental question of why Mars is red has ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. With its iconic ...