Hot air balloon expert Russ Jurg says the suspected Chinese spy balloon was a helium or hydrogen balloon. US air force, navy, China, military, weather balloons Skip Navigation ...

At the heart of this project is hydrogen, a renewable gas, playing a key role. Unlike helium, often used for balloons, hydrogen helps reduce production costs. This choice reflects a desire to make ...

In the 1790s, the first-ever aerostiers brigade, the French Air Force’s hot air balloon corps, did its earliest hydrogen experiments in the Tuileries next to the Louvre.

Gas balloons differ from hot air balloons in that they are sealed and do not use propane burners to heat the air that fills and lifts them. They are usually used for unmanned research flights ...

Hot air balloon expert Russ Jurg says the suspected Chinese spy balloon was a helium or hydrogen balloon. To stream WUSA9 on your phone, you need the WUSA9 app. Download the WUSA9 app ...