The team found preserved biosignatures, including calcium and sodium sulfates. This discovery indicates microbial activity and microorganisms, such as bacteria, were once active in the caves.

Through the intricate study of lava tubes—caves formed following volcanic eruptions when lava cools down—an international team of researchers has uncovered clues about Earth's ancient ...

A peculiar satellite image of Antarctica has sparked fresh debate over the existence of extraterrestrial life. A Google Earth ...

Situated on the extinct volcano Arsia Mons, the pit is part of a series found on the flanks of volcanoes ... its origin and composition. Pits and caves on Mars are of particular interest due ...

The other set, found nearby in the Amapari Marker Band of rock, suggests the presence of a lake with up to 2 meters of water, slightly later in Mars's history than the Prow. The two sets of ...