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early Earth

An illustration showing volcanic activity and meteorite impacts on Earth during the Hadean, 4 billion years ago.
Posted inAGU News

How to Work in the Dark on Deep Time

Heather Goss, AGU Publisher by Heather Goss 22 February 20223 January 2023

Researchers who study the formation of Earth show how ingenuity can shed light on hidden moments of creation.

Artist’s rendering of a planet covered in magma
Posted inNews

Layered Zone Beneath Coral Sea Suggests Ancient Magma Ocean

by Alka Tripathy-Lang 4 February 202225 May 2022

Scientists studying South Pacific earthquakes suggest that an ultralow-velocity zone at the core-mantle boundary may be a remnant of a molten early Earth.

Illustration of the surface of early Earth with an orange sky (with a meteorite streaking through it), a green ocean, a large island landmass, an impact crater, and underwater volcanoes.
Posted inScience Updates

Rethinking the Search for the Origins of Life

by Dustin Trail, Jamie Elsila, Ulrich F. Müller, Timothy Lyons and Karyn L. Rogers 4 February 20224 May 2022

Early Earth conditions and the chemistry that led to life were inextricably interwoven. Earth scientists and prebiotic chemists are working together in new ways to understand how life first emerged.

Martian meteorite ALH84001 shown with a 1-centimeter cube for scale
Posted inNews

A New Explanation for Organics on a Mars Rock That Fell to Earth

by Derek Smith 26 January 20228 March 2022

Organic molecules on a Martian meteorite have fueled nearly 30 years of scientific debate. New evidence suggests they were formed by Martian processes, offering more support for a once habitable environment on the Red Planet.

An artist’s rendering of early Earth with a huge Moon looking over the alien landscape, including oceans of water
Posted inNews

How Much Did the Moon Heat Young Earth?

by Jure Japelj 11 January 202211 January 2022

Tidal heating may have raised the surface temperature of early Earth and triggered global volcanism, a new study says.

Artist’s rendering of Earth’s magnetic field, which connects the North Pole with the South Pole
Posted inNews

Oldest Pole Reversal Shows Early Earth Was Well Suited for Life

by Zack Savitsky 15 December 202115 December 2021

Australian rocks 3.25 billion years old preserved the oldest signs of Earth’s stable magnetic field and quickly moving crust, critical elements of life’s evolution.

Dense green pine trees form the foreground. Gray rocks forming low-relief hills are in the middle distance, dotted with green trees, with a hazy blue sky in the background.
Posted inResearch Spotlights

Extinct Style of Plate Tectonics Explains Early Earth’s Flat Mountains

by Rebecca Dzombak 7 October 202117 February 2023

The geologic record suggests that despite Earth’s hot, thin crust during the Proterozoic, mountains were still able to form thanks to an extinct style of crustal deformation.

Un buzo se acerca a roca cubierta con tapetes multicolores de bacterias.
Posted inNews

Días más largos probablemente incrementaron el oxígeno temprano de la Tierra

Damond Benningfield, Science Writer by Damond Benningfield 1 October 20218 April 2022

Tapetes microbianos en el sumidero del Lago Huron, combinado con modelado, sugiere que el cambio en duración del día de la Tierra podría haber jugado un rol principal en la oxigenación de la atmósfera.

A diver approaches rocks covered with multicolored mats of bacteria.
Posted inNews

Longer Days Likely Boosted Earth’s Early Oxygen

Damond Benningfield, Science Writer by Damond Benningfield 3 September 202124 August 2023

Microbial mats in a Lake Huron sinkhole, combined with modeling work, suggest that the changing length of Earth’s day could have played a key role in oxygenating the atmosphere.

Aerial view of the SK-3 drilling site in China’s Songliao Basin
Posted inScience Updates

An Unbroken Record of Climate During the Age of Dinosaurs

by C. Wang, Y. Gao, D. E. Ibarra, H. Wu and P. Wang 17 May 202112 November 2021

A scientific drilling project in China has retrieved a continuous history of conditions from Earth’s most recent “greenhouse” period that may offer insights about future climate scenarios.

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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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21 October 202621 October 2026
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The Geomagnetic Polarity Time Scale Revisited Once Again

22 October 202622 October 2026
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Opening Access to Earth Observation Data for Disaster Mitigation

21 October 202620 October 2026
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