Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

Space elevators remain one of the most fascinating space concepts because they suggest a future where reaching orbit no longer depends entirely on expensive rocket launches. Interest in space elevator ...

Interplanetary travel has long been one of the most ambitious goals in space exploration, and whether humanity achieves it this century depends on advances in technology, safety systems, cost ...