You might think that explaining why the sky is blue would be kind of simple. But even a brief explanation of it requires a lot of science. The colors of everything you see are produced in different ...

Performances in N.Y.C. Advertisement Supported by Once used to frequent rejection letters, Blue has become a regular on major stages and is singing the title role in “Aida” at the Metropolitan ...

A blue ring formed in 1902 in a tree in northern Norway. Image by Pawel Matulewski and Liliana Siekacz. Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the ...

Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the weather of the past by looking at tree rings — which can tell us far more than just the trees’ age. ‘Blue’ ...

Scientists in Norway have found blue rings in trees that hint at how volcanic eruptions disrupted growth throughout history. When scientists test tree samples to study the ages through their rings, ...

Gregg Newton/Agence France-Presse — Getty Images By Kenneth Chang Kenneth Chang first reported on Blue Origin’s plans for space in 2010. On Thursday morning, at a time when most people in the ...