Calandrelli, 37 — a TV science program host and aerospace engineer who became the 100th woman in space ... which showed her floating upside down in zero gravity as she stared out at Earth ...

Over 60 women have traveled to space, yet none were pregnant during the trip, let alone gave birth while floating in zero gravity. But with talk of future space colonies and cities on Mars ...

Listen to the podcast: Meet the first disabled crew to fly in zero ... gravity disappeared the crew felt weightless for the first time - an extraordinary sensation. "It's not that you're floating ...