PHOENIX (AZFamily) — There have been all kinds of theories about jet contrails over the years. In reality, they have a very simple scientific explanation. You will often see a white streak trailing ...

Space jellyfish to people in Florida is like the Northern Lights to the general population: One of nature's light shows that prompts you to snap photos ...

From the development of new materials that make airplanes lighter to the exploration of alternative fuels, the aviation industry is making strides toward reducing its carbon footprint. One aspect of ...

The white, feathery lines behind airplanes that look like bits of harmless cloud are anything but, warn experts, who say they could have a greater environmental impact than the aviation sector's CO 2 ...

Contrails, or condensation trails, are formed when water vapor in aircraft exhaust condenses and freezes into ice crystals in cold, high-altitude air, with their persistence determined by the air's ...

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Non-experts define contrails as condensation trails that form due to the steam left behind by aircraft and which take shape ...

Looking at the sky on any clear or even partially cloudy day, you might see an outline of an aircraft with what seems like white steam trailing behind it. Most people assume that trail is some form of ...