Spring has officially sprung in North America, bringing with it the promise of warmer days. At precisely 5:01 a.m. ET on Thursday, March 20, the sun's rays fell directly on the equator, marking the ...

We determined through x-rays that someone ... gilded by a late-afternoon sun. NOVA: It is difficult to get an inside sense of what life was like during the Pyramid Age. Can you give us a glimpse ...