David H. Levy, the science columnist for PARADE magazine, who took over Carl Sagan's post, is one of the world's foremost astronomers and a contributor to ASTRO

What should the average person know about science? Because science is so central to life in the 21st century, science educators and other leaders of the scienti

David H. Levy, the science columnist for PARADE magazine, who took over Carl Sagan's post, is one of the world's foremost astronomers and a contributor to ASTRO

Offer a basic introduction to physics and explains Einstein's scientific theories in laymen's terms, including his theory of general relativity and exploration

Did the Universe have a beginning? Will it have an end? Or has it always been the same, never changing? This is the subject of cosmology; the study of the Unive