Mud is messy. For some, it's a plaything. To many, it can mean real hardship. Mud, though, is often overlooked, particularly when it lies out of sight. Deep down at the bottom of the sea, it is one of ...
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NASA discovered a deep blue planet 63 light-years away, but its blue colour comes from glass, not water
From a great distance, the planet could easily give the wrong first impression. Seen in visible light, it appears as a rich blue world, bringing to mind the familiar colour of Earth as viewed from ...
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