Our universe might be chock-full of cosmic wonder, but you can observe only a fraction of astronomical phenomena with your naked eye. Meteor showers, natural fireworks...
Two canyons near the south pole of the moon rival the Grand Canyon, both in depth and length. Unlike the sinuous chasm in Arizona, the two...
A couple in Canada were returning home from walking their dogs some months ago when they found a burst of dusty debris on their walkway. They...
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