Scientists have suggested that subterranean lava tubes on Mars could be home to primitive alien life forms.
Caves dotted around the surface of the Red Planet could provide a safe haven for future human explorers.
NASA has released a fascinating photograph showing a large cave entrance on the slopes of a Martian volcano.
Two cave experts have discovered a hidden network of caves underneath the busy streets of the city.
Scientists have found evidence of life in a cave system hidden deep beneath the Antarctic ice.
Scientists have found a way to identify extinct species of human by analyzing the sediment inside caves.
Neanderthal remains unearthed in Belgium's Goyet caves show indications of cannibalistic behavior.
Evidence of a 9,000-year-old Stone Age ritual site has been found on the Swedish island of Bla Jungfrun.
A new species of centipede has been found inside a cave system 4,700ft below the Earth's surface.
A robot designed to enter and explore coal mines may soon be heading off to visit caverns on the Moon.
Fossils dating back to 500,000 years ago have been found in a vast newly discovered network of caves.
Palaeontologists are working round the clock to uncover lost secrets of Australia's largest ever carnivores in a network of caves.
A new expedition is planned for June 2009 to seek out the legendary Yeti in Russia following sightings and reports near ...
Multiple sightings dating back many years have prompted a surge of interest in the Yeti in Russia's Kemerovo region, a r...