The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere and the spring in the Southern Hemisphere. On the equator, the sun will be directly overhead at ...
When is the best time to take vitamin D supplements? Dietitians reveal the answer, plus explain how to take it, who needs it, ...
Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the ...
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