In 1961 a newspaper article discussed a proposal to build an 18-story, 600-room hotel inside the Grand Canyon descending from the south rim to the canyon floor. A letter-writing campaign ensued that succeeded in blocking the hotel. But lawmakers instead passed a bill that allowed the company to mine uranium there—they never had any intention […]

The occurrence of meteorites on archaeological sites in North America has been known since the early 19th century. From the Hopewell culture in the eastern United States to the Indians in the American Southwest and northern Mexico, meteorites have been found on these ancient sites. Much like meteorite hunters of today, ancient Native American cultures […]

Why would so many physicists compare the universe to an orchestra? Why did Einstein use his violin playing to enhance his contemplation of the nature of the cosmos? The connection of music and math was illuminated early on when Pythagorus divided a string. Not surprisingly, from astro physicists to quantum theorists, the common base is […]

African American women have had a tremendous impact on the lives of Arizonans. In a project I’ve been working on for the past 20 years, I have had the privilege of interviewing some of these amazing women. I call them othermothers/community mothers–these social activist who emerged from the Black woman-centered network of community. Let me […]