This is the first time anyone in the United States has flown a reusable hypersonic rocket plane since the last flight of the ...

Scientists previously thought that solar geoengineering—or releasing particles into the atmosphere to reflect solar ...

Uncrewed stratospheric aircraft, also known as high-altitude platforms (HAPs), offer a sustainable alternative to satellites for Earth observation and communication tasks. HAPs can be manufactured and ...

It was designed to be hard to detect and to be a high-altitude reconnaissance aircraft. U-2s remain in ... atmospheric sampling, and even collecting crop and land management photographic data ...

The US military has its high-altitude U-2 "Dragon Lady" spy planes and other reconnaissance aircraft flying patrol missions along the southern border, a senior Air Force officer has confirmed on ...

Thus, with high altitude reducing the efficiency of the tail rotor, the aircraft loses balance for maintaining unidirectional movement due to lack of a mechanism to counter the force from the ...

India took a decisive step into the future of high-altitude technology. The Defence Research and Development Organisation ...