NASA has admitted that an over 300-foot-wide hole in the surface of Mars could be a 'portal' leading to alien life hiding ...

He says that so-called “lava tubes,” or underground air pockets formed after a volcanic eruption, are the only place where life could possibly survive on Mars. “These lava tubes still in ...

NASA has revealed a 328-foot-wide hole on Mars, potentially a gateway to subterranean ... by meteor impacts and could lead to extensive lava tubes or underground networks. Experts say these ...

Researchers have also theorized that there were once channels of lava on Mars, and even lava tubes on the red planet, shaping its geology. The MRO has taken thousands of pictures of Mars over the ...

In a fascinating intersection of space exploration and Earth science, NASA’s Apollo astronauts once trained on the alien-like ...