twins and multiple births

NASA details Artemis moon missions

Fifty years after humans first stepped onto the moon during the Apollo 11 mission, NASA has created a goal of landing the first woman and next man on the moon's South Pole by 2024. NASA has dubbed this path back to the moon Artemis, after Apollo's twin sister in Greek mythology.

Dynamic duos: Why science loves twins

One of the broadest studies of twins in the United States suggests that our genes tend to influence the diseases that afflict us more than where we live, according to research published Monday in the journal Nature Genetics.