Cirrus Aircraft hosts open houses across North America year-round, but on Monday evening the company had one at home in Duluth. It was a chance for executives and employees to talk with guests about ...

Made up primarily of ice crystals existing above 18,000 feet at temperatures colder than 15(degrees) F, the many forms of cirrus clouds can tell much about what is happening in the atmosphere.

Question: What is the difference between a cloud higher or lower in the sky? What are stratus and cirrus clouds? — Jayden Wilkins Answer: Stratus clouds are smooth clouds that usually occur in the ...

FARGO — Cirrus clouds are the clouds with feathery tails. In fact, they are sometimes called mare's tail clouds. They are very high clouds, usually 20,000 to 30,000 feet above the ground, where the ...

When Lauren McCollum took up flying again last spring, after a 15-year break, she wanted a plane that she could take far and fast. But as a long-lapsed pilot, the Los Angeles property developer did ...

This was said before the tour of the bustling production lines, before the flight around the edge of Lake Superior, before the CEO declared again that personal air transportation had been transformed ...

Determining the effects of the formation of contrails within natural cirrus clouds has proven to be challenging. Quantifying any such effects is necessary if we are to properly account for the ...

Underwriters Laboratories celebrated the ribbon cutting on its newest building in Cirrus Sky Technology Park Wednesday evening with a large crowd of supporters. The ribbon-cutting on its first ...