Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

Earth not only does not support diverse ecosystems, but it also has places that serve as analogs for other celestial worlds in our solar system. Astrobiologist Joshua Sebree of the University of ...