One of the big questions about Mars is how wet was it in the past, and why is it so dry today? A new study published online September 2, 2025, in the journal Geology, examined a number of martian craters. Scientists were looking for past ice deposits, which act like archives where the planet’s geological history can be studied. They Continue reading "Mars’s ice has been disappearing" The post Mars’s ice has been disappearing appeared first on Astronomy Magazine .