Dark Side of the Earth

After reading something that said her menstrual cycle changes her brain each month, Senior Correspondent Molly Webster goes on a reporting mission to see if that’s true, and, if so, how. This journey into sex hormones and the brain involves females and males, and exacting self-ex ...  Show more

In honor of Father's Day, here is a family friendly bonus episode from our kids' podcast Terrestrials. What does it really mean to be a dad? In the animal world, fathers have long been painted as aggressive or absent. At best providers and protectors, but certainly not caregivers ...  Show more

Embark on an interplanetary journey with SpaceTime Series 27 Episode 59, where we unravel the enigmatic atmosphere of Venus and its waterless environment. Discover the startling new study that suggests Venus lost its water reserves to space, leaving it with a mere fraction of Ear ...  Show more

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Mike Massimino, serving as a NASA astronaut until 2014, has a slew of accomplishments: the first human to tweet from space, the last astronaut to work inside the Hubble Telescope and the speculated inspiration for George Clooney’s role in “Gravity.” He’s now out with a book, titl ...  Show more