Ancient Greece has traditionally been periodized into five eras: the Bronze Age, Iron Age, Archaic Age, Classical Age, and Hellenistic Age ...
NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.
Where does life lurk under the ice of Antarctica? The answers keep surprising us. In January, for example, researchers found ...