The blue glow that surrounds the blue Horsehead's eye — and other stars around the image — is a reflection nebula composed of fine dust.

Death exists - in a paperweight, in four red and white balls on a billiard table - and we go on living and breathing it into our lungs like fine dust.

But the survey did find excessive arsenic content in local Wells, and Greenpeace warns that fine dust pollution might become a problem when the snow has gone.