Titan, Saturn's largest moon, could harbor life in its hidden underground ocean – yet Titan's entire aquatic biosphere may weigh no more than a miniature poodle, according to new research. In ...

ORACLE, Ariz. — Plopped in the Sonoran Desert, just outside Tucson, Ariz., sits a massive, multilevel greenhouse that's probably best known as the inspiration for a Pauly Shore movie. A slick, stepped ...