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paleoclimatology & paleoceanography

A view of corals just below the ocean surface off American Samoa
Posted inResearch Spotlights

Corals Make Reliable Recorders of El Niño Fluctuations

by Terri Cook 24 July 202029 September 2021

A new tool that reconciles modeling and paleoclimate data builds confidence that tropical Pacific corals reliably archive natural variability in the El Niño–Southern Oscillation climate pattern.

The Chicxulub impact event, framed by fluffy clouds and flying pterosaurs
Posted inNews

Asteroid Impact, Not Volcanism, Likely Spelled Dinosaurs’ End

Katherine Kornei, Science Writer by Katherine Kornei 21 July 202010 November 2021

Using climate and habitat modeling, researchers show that solar dimming caused by an asteroid impact would have plunged the world into an “impact winter” and decimated dinosaur habitats.

A research team taking sediment cores on Lake Tanganyika in eastern Africa
Posted inResearch Spotlights

Traduciendo Modelos Climáticos al Lenguaje de Datos Paleoclimáticos

Aaron Sidder, freelance science writer by Aaron Sidder 10 July 202014 March 2023

Un nuevo modelo permitirá a los modelos climáticos interpretar mejor las reconstrucciones paleoclimáticas derivadas de sedimentos de lagos y podrá mejorar las predicciones de las condiciones climáticas futuras.

Scientists take spectrometric readings at a rock outcrop in Western Australia
Posted inFeatures

Mars 2020 Team Using Australian Rocks in Search for Life on Mars

by A. J. Brown, C. E. Viviano and T. A. Goudge 2 July 202022 September 2022

Scientists are investigating evidence of ancient terrestrial microbes preserved in Australia as well as mineral maps derived from Mars orbiter data to shed light on how to search for life on Mars.

Dazzlingly lush canopy of the Akatarawa Forest, New Zealand
Posted inNews

New Evidence of a Giant Lava Lamp Beneath the Ancient Pacific

by Kate Evans 1 July 20204 October 2021

Seismic surveys find evidence of a superplume in Earth’s mantle that fueled ancient megaeruptions in the Pacific.

Fossil ferns of the Late Devonian
Posted inNews

Did Ozone Loss Cause the End Devonian Mass Extinction?

Hannah Thomasy, Science Writer by Hannah Thomasy 16 June 202029 September 2022

Ozone loss, perhaps as a consequence of a warming climate, may have been responsible for a catastrophic loss of biodiversity.

Illustration of Stone Age villagers shielding their eyes from a nearby airburst
Posted inNews

Armagedón a 10,000 A.C.

Javier Barbuzano, Science Writer by Javier Barbuzano 4 June 20202 February 2022

Fragmentos de un cometa probablemente golpearon la Tierra hace 12,800 años, y una pequeña aldea del Paleolítico en Siria podría haber sufrido el impacto.

Layers of sediment are exposed on a hillslope in the Bighorn Basin of Wyoming.
Posted inResearch Spotlights

Tracing the Past Through Layers of Sediment

Aaron Sidder, freelance science writer by Aaron Sidder 1 May 202022 August 2023

Signals in layers of sedimentary rock hint at climates and ecosystems come and gone. Understanding this history can help us forecast the future, but challenges abound.

Image of the Jezero delta on Mars
Posted inEditors' Highlights

How Fast Did an Ancient Martian Delta Form?

by F. Nimmo 23 April 202019 September 2023

Terrestrial meander migration rates are used to estimate a formation timescale of decades for Jezero delta on Mars.

Side-by-side illustrations of a Martian horizon featuring a dry landscape and a wet landscape
Posted inResearch Spotlights

How Mars’s Magnetic Field Let Its Atmosphere Slip Away

by Mark Zastrow 31 March 202010 February 2023

A planet’s magnetic field usually protects its atmosphere from being blown away by its star. But new research suggests Mars’s weak magnetic field may have helped its atmosphere escape.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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