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-- -- you watch the moon over the course of the month you'll notice that different features are illuminated by the sun at different times.
However there are some parts of the movement.
Could never -- some.
He's serious -- called permanently shadowed regions in the -- -- because unlike on the earth.
The axis of the moon is nearly perpendicular to the direction of the suns liked the result is that the bottoms of certain craters like year and new South Pole are never went to really sign.
Some remained dark for over two billion years.
However thanks to new data from NASA's lunar reconnaissance orbiter we can now -- into these dark craters -- incredible detail.
Seeing the shape of the crater is important and LRO has used -- -- instruments to make the best yet topographical maps of traders are reflecting lasers off the lunar surface.
This is allowed us see the shapes of the traders interiors from any angle and by making 3-D models we can light -- the crater floors as if we had a giant flashlight.
And although the sun never illuminates traders other stars still cast a faint light into the permanent shadows.
Hello Roseland instruments can actually measure this -- giving us yet another view of this unique -- -- on the moon.
Belarus define our instruments can also measure temperature revealing -- extreme cold -- craters.
Finally -- Roseland instrument can measure the speed neutrons to detect elements like hydrogen loose soil.
So while there are some areas on the move and that never seemed delighted de LRO will keep collecting data so that we can learn more about the and as we continue to study the -- we will improve our understanding of Earth's original satellite.
And I'm fully intended to bring new discoveries to light.
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