In 1925, grad student Cecilia Payne first proposed that stars were mostly made of hydrogen and helium and shaped our ...

In a life severely characterized by loss, a woman is in the borderland between ... but she still finds solace in the infinity of the universe and smallness of human.

This story appears in the May 2018 issue of National Geographic magazine. Juna Kollmeier wants to understand the substance of the universe: What forms space structures like galaxies, supermassive ...