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Enter a new hypothesis in Science or Technology. You will give your own opinion on this opinion. Note that even if your choice cannot be changed, but you will always be able to enter new comments at any moment.
Asteroids: with the increasing detection of asteroids near the earth orbit, it will happen that some fall on the moon and provoke a spectacular view from the earth. : yes / no / Other from BG ended the 01/10/2020 07h55
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