In the early 1990s, eight people agreed to vanish from the world and live for two years inside a sealed glass habitat in the Arizona desert, a kind of fake Earth built to see whether humans could ...

There's a wonderful mineral collection in Butte, up at Tech. I like to stroll through it, marveling at the amazing range of forms and colors. At the Smithsonian's natural history museum in Washington, ...

In a quiet corner of a physics building in Australia, a glass funnel filled with a tar-like substance has been dripping so ...

A t the University of Queensland, there is a display containing the longest-running laboratory experiment in the world. It's ...