NASA's Curiosity Rover Finds A 'Doorway' On Mars: What Is This Strange Structure?

https://www.indiatimes.com/technology/science-and-future/nasas-curiosity-rover-finds-a-doorway-on-mars-what-is-this-strange-structure-569546.html via /r/worldnews https://www.reddit.com/r/worldnews/comments/ur3kc0/nasas_curiosity_rover_finds_a_doorway_on_mars/?utm_source=ifttt