A 2025 model links Venus’s 6,800-kilometre canali to rare, low-viscosity carbonatite lava and a potentially late addition of much of the planet’s carbon dioxide atmosphere.
Venus carries what look, at first glance, like river systems across its volcanic plains. They meander, divide around islands and sometimes preserve abandoned bends. One of them, Baltis Vallis, runs f… [+13495 chars]