Scientists have long known that certain surface patches on Mercury, the planet first in line from the sun in our solar system, reflect radar signals just like ice does in the polar regions of Earth. To their delight, new data from the orbiting NASA MESSENGER spacecraft confirm the thesis: The radar-bright spots correspond to the darkest parts of the craters at the north and south poles of the planet where it is cold enough to preserve water ice.
Click here to read the full article by Kathleen Micham on UCLA Today
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