"The dawn of a new era in human spaceflight," NASA astronaut Anne McClain tweeted with this image.
NASA astronaut Anne McClain
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:NASA_Johnson_3.3-445A2747.jpg" title="File:NASA Johnson 3.3-445A2747.jpg">NASA Johnson 3.3-445A2747.jpg</a><br>