Space
Mars has ice sheets 130 metres thick hiding below its red dust
Eight newfound Martian cliffs made up of layers of ice could tell us how the Red Planet's climate has changed in the past several million years
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Eight newfound Martian cliffs made up of layers of ice could tell us how the Red Planet's climate has changed in the past several million years
The mystery of how water on Mars lasted for millions of years may come down to methane explosions that warmed the planet enough to melt ice and make rivers flow