A collection of some 25,000 historical photographs, slides, lithographs, engravings, and other visual materials, focusing on American physicists and astronomers of the twentieth century, but including many scientists in...

Exploring music, astronomy and cosmology, starting with the historical roots; the Pythagoreans in particular contributed profoundly to the development of Western Music by discovering two facts: first, that the sound...

The Solar System online course is maintained by the Department of Physics & Astronomy at the University of Tennessee. The twenty two chapters cover everything from time and scale in the universe, development of modern...

The new online exhibit, Explore the Universe, is provided by the Smithsonian National Air and Space Museum. The site "presents the major discoveries that have given us our current scientific view of the universe,...

The transit of Venus across the disk of the sun is a rare astronomical event that has transfixed astronomers for centuries. June 8, 2004 marked the last occurrence of this event. Due to its extreme rarity (occurring...