{"id":524201,"date":"2026-06-08T07:16:15","date_gmt":"2026-06-08T07:16:15","guid":{"rendered":"https:\/\/www.europesays.com\/ie\/524201\/"},"modified":"2026-06-08T07:16:15","modified_gmt":"2026-06-08T07:16:15","slug":"nasa-missions-to-uranus-is-the-solar-system-missing-whole-planets-scientists-think-uranus-may-have-answers","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ie\/524201\/","title":{"rendered":"Nasa Missions To Uranus: Is the solar system missing whole planets? Scientists think Uranus may have answers"},"content":{"rendered":"

\"Is For years, everyone assumed our solar system\u2019s eight planets (nine, when Pluto was within the fold) were the whole story. Planets, moons, asteroids, comets, and that\u2019s all \u2014 case closed. But there\u2019s a growing suspicion that the solar system was once even busier, maybe with another giant planet or two that got tossed out into deep space long ago. Now, some astronomers think the clues aren\u2019t hiding in other star systems, but are actually right here, wrapped up in the frozen, battered moons orbiting distant Uranus.These moons, usually overshadowed by the showier satellites of Jupiter and Saturn, could be holding onto the scars of ancient disasters \u2014 all the cosmic chaos when giant planets migrated, collided, or ejected their siblings. Studying their strange shapes and survival stories might help scientists piece together what really happened in the solar system\u2019s wild early days.<\/p>\n

Does the solar system have more \u2018missing\u2019 planets?<\/p>\n

Believe it or not, the idea that planets are \u201cmissing\u201d isn\u2019t so crazy. Scientists have long suspected that Jupiter, Saturn, Uranus, and Neptune didn\u2019t start out where they are now. Early in their history, they orbited much closer, in a tightly packed dance with gravitational shoves and close calls. During this messy phase, often called the giant planet instability, things got rough. So, the planets could have been thrown out entirely. Some models even predict one or two extra ice giants, maybe the size of Uranus or Neptune, that got flung out and lost to interstellar space.So where does Uranus come in?Uranus has always been one of the odd ones \u2014 spinning on its side, with its poles basically where its equator should be. That tilt likely came from a massive impact, but new research suggests it went through even more eventful occurrences.According to Wired, a recent Icarus study details that scientists ran more than a hundred, 122 to be exact, computer simulations to see how Uranus\u2019 moons would fare during the solar system\u2019s wild youth. In most cases, those moons didn\u2019t make it through; their orbits got scrambled, or they were destroyed. Yet, Uranus\u2019 moons are still there.How so?The researchers came to the conclusion that its current configuration could only take place under the scenario of an episode of violent instability. And this type of instability and this chaos, which likely destroyed and rebuilt the moons, only appears in models where more giant planets existed than we see today.Now, all eyes turn to Miranda, the oddest of the bunch. Of Uranus\u2019 five big moons, Miranda is the smallest and, honestly, looks like it\u2019s been stitched together from leftovers. Its surface is a patchwork of cliffs, ridges, and broken terrain, like it was smashed up and haphazardly glued back together. Astronomers have long guessed that Miranda was destroyed and rebuilt at some point. The latest research makes that seem even more likely. If Miranda really is a rebuilt world, it could be one of the oldest, weirdest witnesses to whatever went down during our solar system\u2019s rowdiest era.And Miranda isn\u2019t the end of the story. Scientists suspect there are even more tiny, hidden moons buried in Uranus\u2019 rings. Odd ripples and waves in those rings hint at unseen \u201cmoonlets\u201d shaping the patterns, while the outer rings hint at gravitational influences from still-undiscovered objects. Every new moon found could add another clue about what Uranus lived through, and what got lost along the way.<\/p>\n

What\u2019s next?<\/p>\n

So, what\u2019s the biggest issue here? We\u2019ve barely visited Uranus.Only Voyager 2 flew past the planet in 1986, almost 40 years ago, so our knowledge is still incredibly limited. But that may change, as NASA and the European Space Agency are reportedly talking about sending new missions there in the 2040s. Those could get a first close look at Miranda and the other moons, maybe revealing once and for all whether they\u2019re ancient survivors of planetary mayhem.If the moons really do preserve evidence of planets that vanished, it wouldn\u2019t just rewrite our solar system\u2019s story. It would change what we think about how planets form everywhere. For now, the mystery is wide open. But in the deep cold shadows around Uranus, the battered moons keep spinning, silently holding on to the secrets of potential worlds that once were, and then were gone.<\/p>\n","protected":false},"excerpt":{"rendered":"For years, everyone assumed our solar system\u2019s eight planets (nine, when Pluto was within the fold) were the…\n","protected":false},"author":2,"featured_media":524202,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[270],"tags":[18,226360,19,17,226359,226358,226356,27388,133,226357,451,25577],"class_list":["post-524201","post","type-post","status-publish","format-standard","has-post-thumbnail","category-space","tag-eire","tag-giant-planet-instability","tag-ie","tag-ireland","tag-miranda-moon","tag-missing-planets-in-solar-system","tag-nasa-missions-to-uranus","tag-planetary-formation","tag-science","tag-solar-system-history","tag-space","tag-uranus-moons"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ie\/116713265295126751","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/524201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/comments?post=524201"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/524201\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media\/524202"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media?parent=524201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/categories?post=524201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/tags?post=524201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}