Editors, "If a Moon Has a Moon, Is Its Moon Called a Moonmoon?" Smithsonian Magazine [online]. (11 October 2018) Read more: https://www.smithsonianmag.com/smart-news/

Editors, "If a Moon Has a Moon, Is Its Moon Called a Moonmoon?" Smithsonian Magazine [online]. (11 October 2018) Read more: https://www.smithsonianmag.com/smart-news/