A purple ribbon of light in the sky known as "STEVE" appears to have a long-lost twin. This isn't the plot of a space soap opera; it's a finding from a trio of European Space Agency satellites ...

That brings us back to the ribbons, which are purple in honor of Queen Elizabeth’s 50 th year on the British throne and have been woven from three different types of thread. The eagle-eyed among ...

In the 45 minutes it takes her to drive from home in suburban Delaware to work in Philadelphia, Rosary Mastroeni sees ribbons by the dozens. Colorful loops of colors for causes turn roads into ...