The Climate Swings of Ancient Mars ⚡ экспресс
Original: "Limit cycles and the climate history of Mars"
The planet periodically heated up and was briefly covered with rivers and lakes.
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Today Mars is an icy desert, but 4 billion years ago streams babbled there. The paradox is that the Sun was dimmer back then. The solution lies in climate swings: the planet periodically heated up due to carbon dioxide. This explains how water appeared on a cold Mars.
🎯 Mars' axis wobbled greatly, sometimes exposing ice to direct sunlight—this added sharpness to the climate swings.
🎬 This picture echoes images of ancient Mars from science fiction, where a dying civilization struggled against encroaching drought.