Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

The Pentagon on 22 May 2026 released a second trove of once-classified images and video footage of unexplained flying objects over the United States, reigniting the debate over whether ...

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 ...