In addition to boosters, Japan is the only nation to have launched a practical solar sail spacecraft[1]. They've also got another spacecraft[2] orbiting an ast

In addition to boosters, Japan is the only nation to have launched a practical solar sail spacecraft[1]. They've also got another spacecraft[2] orbiting an asteroid with the intent of returning a sample from it. [1]https://en.wikipedia.org/wiki/IKAROS https://en.wikipedia.org/wiki/IKAROS [2]http://www.hayabusa2.jaxa.jp/en/ http://www.hayabusa2.jaxa.jp/en/