Geological time, generally considered as a system of eras, periods and epochs materialized in rock strata, might actually follow a simple and unifying model. Indeed, a new study led by ...

What are some events that all of us have had in our lives? Ask the class "What are some events that all of us have had in our lives?" Make a list of 5 or 6 things on the board. Let’s organize these!

Introduction. The study of the earth / J.F. White -- The law of uniformity and geologic time. James Hutton / Karl von Zittel -- The uniformity of nature / Charles Coulston Gillispie -- Measuring ...

NH copy Purchased from the Cullman Endowment. V. 1. The chronostratigraphic scale / F.M. Gradstein and J.G. Ogg -- Biochronology / F.M. Gradstein -- Cyclostratigraphy and astrochronology / L.A. Hinnov ...

Every other Friday, the Outside/In team answers a listener question about the natural world. This week’s question comes from Emily in Washington, DC. Crawford Lake in Milton, Ontario. The answer to ...

Since “Anthropocene” was coined in 2000, it has increasingly defined our times as an age of human-caused planetary transformation. On March 4, 2024, the commission responsible for recognizing time ...