NASA’s Mars Curiosity Rover Photographs a Mysterious “Alien Portal”
For nearly 10 years, NASA's Curiosity rover has been traversing Mars in an effort to learn more about the Red Planet's climate and geology. The goal is to understand if Mars has ever had conditions that were favorable to supporting life. Along the way, Curiosity's Mastcam has been snapping photographs that document the experience. All of the raw data is uploaded onto NASA's website and a particular image from May 7 is getting people excited.












































































