MAKING THE PAPER

摘要

Because they are so far away and light has taken so long to travel from them, we see distant galaxies as they were billions of years ago. Studying the early stages of these galaxies - such as those that formed just 2 billion-3 billion years after the Big Bang - can help us to understand how galaxies evolve into present-day systems such as our Milky Way. So far, most work has focused on information assembled from many galaxies that sheds light on important aspects of development, such as star formation rates. But, to amass more details of galaxy formation through time, scientists need knowledge of individual galaxies' internal structures - for example, the motion of gases within them.