Witnesses have described an "explosion" in Hackney Wick, north London, which has left a plume of smoke rising into the sky. There is some suggestion it may have been caused by lightning.

Every color means something (or several things), and you should be familiar with them so you know what to do when colorful smoke billows out of your tailpipe. Little to no exhaust smoke color.

Smoke changes color At 4:25, the smoke changed color and puffed but then returned to wispy white and then changed to dark gray. I requested a rescue squad for monitoring and its “hot stick ...

Smoke particles also scatter light, and because they are larger than air molecules, ... The color of the sky during the periods of heaviest haze is reminiscent of the colors you see at sunset.

As 31 torchbearers came together to light the Sun Bird ring in the Dong'an Lake Sports Park Stadium in Chengdu, capital of Sichuan province, on Friday night, it rose into the air, emitting a glow ...

An explosion inside a shipping container at the world's largest railyard prompted evacuations in western Nebraska Thursday because of the toxic smoke generated when one of the chemicals aboard ...