Aircraft had begun to reach the heights conducive to the formation of contrails. Others also began noticing the clouds trailing behind aircraft.

It’s a bird. It’s a plane. It’s actually neither of those things. What this video shows is a mysterious third thing, and it has millions of people scratching their heads in confusion ...

Significant icing conditions may have contributed to a small plane crash Wednesday morning in Bennington County. The Piper Cherokee Charger, N43DN, crashed at about 8:30 a.m. on Mount Equinox near ...

He gripped the side stick, unwittingly disengaging the autopilot, and the plane shot into the clouds. It was a dangerous maneuver for any flight crew member, especially one without any experience.

It was the ever changing colorful landscape of clouds in the sky that created visual interest and emotional tone. It was a moment when I realized how much clouds color our experience of the world.

If you’re close enough to the ground to see the plane’s shadow advance across the landscape, that can help you put the plane’s speed in perspective. Clouds can also help.

The footage, which was captured over Creede, a town in Colorado, shows an aerial view from a plane window, with a dark black line stretching across the sky above a vast landscape below.

In 1944, a U.S. Army Corps B-24 bomber crashed near the top of Humphreys Peak in Arizona. Here's what we know about the crash and how to get to the site.

Some people enjoy watching clouds, but I prefer contrails, those chalky lines left in the wake of aircraft at high altitudes, where the temperature and vapor pressure are low.