A disappearing plane and a disease's sudden spread. Legalizations, celebrations â and the inexplicable attraction of a dumped bucket of ice water. These are some of the stories that dominated 2014. Now we want your choices.
The brightest star, as viewed from Earth, is Sirius, and it appears bluish-white to the human eye. It is classified as an A1Vm star and shares the color spectrum with other class-A stars.
White light. Incoming light from the farthest stars is percieved as white, although the color might be lacking in absolute purity as a result of the gaseous content of the star. Scientists evalute the spectrum generated by the star to determine its speed and its make-up.