Back to today’s briefing

Story perspectives

ESA's Mars Express Reveals Ancient Acheron Fossae Secrets

4/9/2025

47 5

Summary

Story summary

ESA's Mars Express has unveiled stunning new images of the Acheron Fossae region, revealing an 800-kilometer-long tectonic graben system that dates back 3.7 billion years. These captivating visuals showcase a variety of geological wonders, from smooth plains to volcanic domes, and hint at ancient glacial activity, deepening our understanding of Mars's complex geological past.

1 of 1

Story summary

ESA's Mars Express has unveiled stunning new images of the Acheron Fossae region, revealing an 800-kilometer-long tectonic graben system that dates back 3.7 billion years. These captivating visuals showcase a variety of geological wonders, from smooth plains to volcanic domes, and hint at ancient glacial activity, deepening our understanding of Mars's complex geological past.