746K views · 1.7K reactions | Humanity’s greatest explorers aren’t always human. Join us as we celebrate the achievements of the Mars Exploration Rovers Opportunity at the completion of a 15 year mission: https://go.nasa.gov/2SxMkjK | NASA Jet Propulsion Laboratory | Facebook

Caves found on Mars Surface? This formation on the surface of Mars looks like a cave or deep opening, raising many questions. Scientists believe such features could be lava tubes, formed long ago when molten lava flowed beneath the surface. These caves are important because they may protect against radiation and extreme temperatures. Some scientists even think Martian caves could be the best places to search for signs of past life. Mars continues to reveal mysterious features hidden beneath its

Welcome to the surface of Mars! 🪐🌋 Explore dusty red landscapes, rocky plains, and traces of ancient rivers on the fourth planet from the Sun. #MarsMission #NASA #mars | Space Journey