In the 1960s, secret test flights of advanced government spy planes generated UFO sightings. More recently, government and commercial drones, new kinds of satellites and errant weather balloons have ...

Every November, the Leonid meteor shower lights up the sky — a dazzling reminder that our planet is just one small part of a vast, mysterious cosmos. As shooting stars streak overhead, it’s hard not ...

Former US president Barack Obama has clarified comments he made about aliens during a recent interview, after a clip of his response sparked widespread debate online. Sharing the video on Instagram, ...