Contrails — the little white lines streaming out of an airplane — form when the hot air from the exhaust mixes with the cooler temperature and low-pressure environment.

A cycle lane here is basically a white line sprayed onto a busy road which is completely useless,” he said. “Take the Crumlin ...

The Caltrans pilot program began last year on the 5 Freeway in northern San Diego County where drivers are encountering orange and white lane striping ... but also see the lines more clearly ...

Question: In my city, there is a double yellow line on the main roadway and yet some motorists cross both lines to park against oncoming traffic, many at dark with headlights on. Why is this ...

The catamaran motors by pelicans perched upon piers. It passes monstrous, red-orange contraptions that could be the Martian ...

The new design is a white line drawing on a dark-navy background. Unlike any other recent version, it includes flourishes that depict the moulding around the building’s front door, the ...

Distinct white lines gradually evolve from tan and rust-red. Strips of white crisscross a desert so dry that it rains less than an inch every year. The landscape changes as lines take shape to ...