Mars was once rich with flowing water. Today, it's a cold, dusty desert marked by dried riverbeds and empty lake basins.

NASA announced on Wednesday (May 14) that the target launch date for Ax-4, the fourth crewed flight to the ISS by Houston-based company Axiom Space, has been pushed from May 29 to June 8.

Eco-friendly airships are being brought to market by several start-ups, which believe that the newfangled zeppelins could ...

This exciting discovery opens up new possibilities for auroral research and confirms that auroras could be visible to future ...