The earliest known UFO sighting in Florida, according to the National UFO Reporting Center, was July 15, 1944, near Tampa. A black cylindrical object appeared over P-38s in the area and was visible ...

Researchers have developed scalable lightsails, ultra-thin, reflective structures that use laser-driven radiation pressure to ...

One might be inclined to think that rockets would launch straight upward, but they don't, they curve along the way, and ...