First-ever mapping of large river systems on planet 'Mars' by scientists

A detailed view of the complex Idaeus Fossae valleys captured by Mars Reconnaissance Orbiter. (Image: NASA/JPL-Caltech/University of Arizona)

Scientists have mapped large ancient drainage systems across the Martian surface. The study identifies previously unknown connections between valleys, lakes and canyons. Findings suggest Mars once had complex, planet-wide water circulation patterns. The discovery reshapes our understanding of ancient Martian climate history.

Rivers That Once Shaped a Planet

Researchers located 19 major clusters of rivers, lakes and sediments. Sixteen of these clusters link together forming large drainage basins. These systems resemble Earth’s river networks in scale and connectivity. Most basins occupy small surface areas but carry significant eroded material.

The Minds Mapping Ancient Water

The University of Texas at Austin led this planetary investigation. Scientists consolidated multiple existing datasets of Mars’s valleys and lakes. International collaborators verified the findings through satellite imagery and topography analysis. The team combined Earth-based hydrology methods with Martian geological models.

Clues of a Watery Past

Mars supported organised, large-scale hydrological systems in its ancient past. Water likely transported sediments and nutrients across these extensive basins. Rivers and lakes may have created potential habitats for microbial life. The findings highlight areas with high scientific interest for future missions.

Mars: A Planet That Could Sustain Life

The study changes perspectives on Mars’s ancient climate and water cycles. It strengthens evidence that Mars was once warmer, wetter, and habitable. Scientists can prioritise these basins for exploration and fossil searches. Results provide crucial insight for astrobiology and understanding planetary evolution.

Charting the Red Planet’s Hidden Streams

Teams plan to analyse sediment compositions within these drainage basins. Further studies may identify signs of past microbial or organic activity. Satellite surveys and rovers will target the most promising basin regions. This research lays groundwork for future Mars habitability investigations.