Today is the fortieth anniversary of a very important day in human history. On June 13, 1983, Pioneer 10 passed beyond Neptune.<\/p>\n
In that moment it became the first human-made object to leave our modern Solar System. Although the story is more complicated than that.<\/p>\n
Because in 1983, Pluto was still considered a planet. Pluto didn’t stop being considered a planet for another quarter century — in 2006 in fact.<\/p>\n
So Neptune did not yet mark the edge of our solar system in 1983. But in the intervening decades, the rules changed.<\/p>\n
40 years ago our human reach got bigger. Since then, our solar system got smaller.<\/p>\n","protected":false},"excerpt":{"rendered":"
Today is the fortieth anniversary of a very important day in human history. On June 13, 1983, Pioneer 10 passed beyond Neptune. In that moment it became the first human-made object to leave our modern Solar System. Although the story is more complicated than that. Because in 1983, Pluto was still considered a planet. Pluto … Continue reading “Out of this world”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/25524"}],"collection":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25524"}],"version-history":[{"count":3,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/25524\/revisions"}],"predecessor-version":[{"id":25527,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/25524\/revisions\/25527"}],"wp:attachment":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25524"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}