As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red planet would give more than enough time for someone to become pregnant and even give birth. But could a pregnancy be conceived and carried safely in space? And what would happen to a baby born far from Earth?
Most of us rarely consider the risks we survived before birth. For instance, about two thirds of human embryos do not live long enough to be born, with most losses happening in the first few weeks after fertilisation; often before a person even knows they’re pregnant. These early, unnoticed losses usually happen when an embryo either fails to develop properly or to implant successfully in the wall of the womb.
