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 ...

A dramatic aircraft chase of a falling spacecraft has provided new insights into the fiery processes that accompany the ...

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 ...

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 ...

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 ...

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

Any good bike ride should have a big climb to push your fitness, and a nice descent for the joy of careening down at high speed ... to play them back on an aircraft altitude indicator.