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The Moon is Earth’s only natural satellite, circling the planet at an average distance of roughly 385,000 kilometers (239,000 miles).  With a diameter of just under 3,500 kilometers (about 2,160 miles), the cratered surface of the rocky object is one Read more…


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In modern times, a great deal of research has focused on the way that artificial light sources mess up our sleep and health, due to the unnatural effects of illumination after the Sun goes down.   But just how unnatural Read more…


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Evidence of water in the shadows of craters or locked up in glassy beads like microscopic snow-globes has recently revealed the Moon’s surface is far less desiccated than we ever imagined.   Just where this veneer of ice water came Read more…


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Earth’s second moon will make a close approach to the planet next week before drifting off into space, never to be seen again. “What second moon,” you ask? Astronomers call it 2020 SO – a small object that dropped into Read more…


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A test of a powerful new space imaging instrument has given us a gloriously detailed new perspective of the Apollo 15 Moon landing site. By bouncing a powerful radar signal off the lunar surface, the new instrument has been able Read more…

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