Many space-lovers know the phrase "We are all made of star stuff." And it's true - our planet formed from the dust cloud left over from the formation of our Sun, and from the planet, all life. That ...

Measuring—and delivering—what consumers really want by Eric Almquist, John Senior and Nicolas Bloch When customers evaluate a product or service, they weigh its perceived value against the asking ...

Alkali metals: Alkali metals have a single electron in their outermost energy level, so they bond readily with other elements. They are typically soft enough to slice with a knife and are good ...