The trailblazing Harvard scientist, who documented the dominance of hydrogen and helium in stars, is still inspiring ...

But, so far at least, astronomy has remained above human tinkering, and at 5:01 a.m. Philadelphia time Thursday the sun will ...

Utah boasts five national parks and more than 40 state parks for visitors and residents to explore. Plus, with the state's array of small towns, mountains, ski areas and an urban hub in Salt Lake City ...