We think of human flight as a relatively modern affair, with a few claims to the first airplane all around the turn of the last century. But people flew much earlier than that by using hot air ...

In 1783, hot air balloons became the first viable option for people to explore the world from the sky. In the years since then, balloon flight technology has evolved from cloth balloons and open ...

French fighter jets shot down high-altitude balloons with air-to-air missiles in a recent test. France warned that the battle for near-space is heating up and pointed to China's spy balloon over the ...

The Pentagon said the latest high altitude balloon detected over the United States is a "likely hobby" craft, about a year after a Chinese spy balloon traversed the continental U.S., sparking ...

A string of "unidentified objects" entered North American skies in the past few days, only to be shot down by US military aircraft. And in the grand tradition of public speculation surrounding ...

A balloon intercepted by fighter aircraft over Utah on Friday was a "likely hobby balloon" and has since left United States airspace, the North American Aerospace Defense Command (NORAD) said Saturday ...

This involves metamaterial plates or 3D hollow geometries (e.g., cones, spheres, or rocket shapes) with porous sidewalls that act as Knudsen pumps: light (typically sunlight) is absorbed on one side, ...

San Diego Jewish Academy recently announced the successful launch of a high-altitude weather balloon by its physics students, which traveled roughly 60 miles northeast, was in the air for two hours, ...