News > Nation
Mars once had wet-dry climate – study

PARIS: NASA's Curiosity rover has discovered the first evidence that Mars once had a climate which alternated between wet and dry seasons similar to Earth, a study said on Wednesday (Thursday in Manila), suggesting the red planet may have once had the right conditions to support life.

Though the surface of Mars is now an arid desert, billions of years ago rivers and vast lakes are thought to have stretched across its surface.