Early Galaxies

A new study has found evidence that galaxies were forming a mere 200 million years after the Big Bang, much sooner than previously thought. That fact, if confirmed, would force physicists to revise their theories about the nature of the earliest epoch. Of course, physicists have only been working on the universe we know today for a few scant decades, and even then they've been working with an incomplete data set and a similarly incomplete knowledge of the basics of extremely high energy physics, so it shouldn't be a shock that some current ideas will have to be revised. Others, no doubt, will turn out to be precisely wrong.