TEXAS — Six women — including a former NASA rocket scientist, a bioastronautics research scientist, journalist Gayle King and music superstar Katy Perry — became astronauts after taking flight in a ...
Bluish hands, known as peripheral cyanosis, can be a harmless response to cold but may signal poor circulation or serious ...
Polar bears aren't white, strawberries aren't berries and the Earth isn't round—we'll have you rethinking everything you ...
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