Science

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One day, space explorers might stroll along the red rocks of Mars. But radiation exposure during the trip may wipe away their memories of home. A new report says that cosmic rays can change the physical architecture of the…

The planet Mercury earned a new crater when NASA’s MESSENGER probe smashed into its scorched surface earlier this afternoon. The intentional crash landing ended an 11-year mission that brought us the most intimate peeks at our solar system’s smallest…