Kathy Campbell / UNSW
The 3.48 billion-year-old fossils suggest life existed on land earlier than we thought.
The crew “returns to Earth” Sunday after 365 days in isolation.
NASA's new campaign means you could make the most of those childhood dreams to be an astronaut.
From a lack of air and drinking water to solar radiation, theoretical Mars pioneers face any number of potential obstacles to colonizing the red planet. Now, scientists have found something else to ad...
Science Photo Library - ANDRZEJ WOJCICKI via Getty Images
NASA scientists have made one giant leap towards discovering if there is life on Mars. They've found the red planet has a summer season, during which streams of life-giving liquid water flow across i...
Mars has water on its surface, and it's in liquid form at least some of the time. NASA on Monday announced the results of a new study showing that salty liquid water flows seasonally on Mars, giving t...
Despite its reputation as a forebodingly dusty, desolate and lifeless place, Mars seem