Astronomy Day is April 25, and we at Teaching with the Library of Congress are standing by with a cluster of blog posts featuring primary sources that explore changing ideas of the solar system and what lies beyond it.
Historical documents may be rooted in the past, but they provide a powerful way for the scientists and stargazers of today to familiarize themselves with scientific practices, to observe the ways in which scientific knowledge changes over time, and to honor the legacy of those who have boldly gone before them.
Speaking of stars, each of these posts was written by our former colleague