An icon for a "balloonsat": high altitude balloon for education, testing payloads, or conducting research. The icon is white on blue, creating a negative image.
<a href="//commons.wikimedia.org/w/index.php?title=User:CamelNotation&amp;action=edit&amp;redlink=1" class="new" title="User:CamelNotation (page does not exist)">camelNotation</a>
2013-09-01
<span class="int-own-work" lang="en">Own work</span>