We begin the new year by taking a deep dive into an even deeper subject: the mysteries of geologic time. We leave the turbulent present to visit the past, exploring the West long before it became the ...

This report provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report ...

This piece is part of a special project on deep time examining what the Western U.S. was like thousands, millions and even billions of years ago, and how that history is still visible and ...

Scientists discovered how Earth recycles continents deep underground, shaping the unusual rocks found in ancient mountain ...