Tag Archive for 'Tectonism'

Hadean Earth. Image credit: Alec Brenner.

Earth’s Lithosphere was Already Segmented and Mobile 3.5 Billion Years Ago

Mar 22, 2026 by News Staff

By tracing magnetic signals preserved in 3.5-billion-year-old rocks in Western Australia, geoscientists have found the oldest direct evidence yet that...

A small mare ridge in Northeast Mare Imbrium taken by the Lunar Reconnaissance Orbiter Camera. Image credit: NASA / GSFC / Arizona State University.

Moon is More Geologically Active than Previously Thought

Feb 18, 2026 by News Staff

Planetary scientists have identified thousands of small mare ridges (SMRs) across the Moon’s maria, pointing to active tectonic forces that may shape...

Artist’s impression of a volcano erupting on Venus. Image credit: ESA / AOES Medialab.

Planetary Scientists Find New Evidence for Tectonic Activity on Venus

May 20, 2025 by News Staff

Venus, Earth’s ‘twin planet,’ presents clear contrasts in terms of surface conditions, atmospheric chemistry, and tectonic state. Understanding the...

A topographic map of the Eridania region of Mars; volcanic structures described by Michalski et al. are classified by morphology and morphometrics. Image credit: Michalski et al., doi: 10.1038/s41550-023-02191-7.

Early Mars was Tectonically and Volcanically Active, Study Suggests

Feb 12, 2024 by News Staff

The relatively well-preserved ancient crust of Mars provides a natural window into early planetary evolution not available on Earth. Mars has generally...

This view of Europa was captured by the JunoCam imager aboard NASA’s Juno spacecraft during the mission’s close flyby on September 29, 2022. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill.

Local Tectonic Activity Could Cause Landslides on Icy Satellites of Jupiter and Saturn

Apr 17, 2023 by News Staff

Intense tectonism is evident on many outer solar system satellites — such as Ganymede, Europa, and Enceladus — with some surface regions showing...