to those long-deferred stirrings of the deep imprisoned titans which have divided earth history into periods and eras. The flight of time is measured by the weaving of composite rhythms— day and ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact ...

Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life ... The geologic time scale is divided into eons, eras, periods, epochs, and ages. Our ...

Scientists have made the case that Earth has entered a new epoch known ... Previously geologic eras lasted for millennia, and changes came due to "natural fluctuations in temperature on the ...

3 min read The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth's history. Something—a bout of violent volcanic eruptions, climate change, or perhaps a fatal run ...

Learn about the time period that took ... of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously absent from the face of the Earth. Rodent-size (and perhaps ...

If women on this humble Earth struggle to manage periods, how would things be in outer space? NASA’s astronauts Sunita ...