{"id":915325,"date":"2026-11-12T23:56:14","date_gmt":"2026-11-12T23:56:14","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/915325\/"},"modified":"2026-11-12T23:56:14","modified_gmt":"2026-11-12T23:56:14","slug":"near-earth-asteroid-1998-ky26-may-actually-be-soviet-spacecraft-phobos-1","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/915325\/","title":{"rendered":"Near-Earth asteroid 1998 KY26 may actually be Soviet spacecraft Phobos 1"},"content":{"rendered":"\n<p>NEWYou can now listen to Fox News articles!\n  <\/p>\n<p data-layout-index=\"5\" class=\"speakable\">A mysterious object speeding through the <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578125\" href=\"https:\/\/www.foxnews.com\/category\/science\/air-and-space\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">solar system<\/a> is accelerating in a way gravity alone cannot explain, fueling a theory that it could be a Soviet spacecraft lost nearly four decades ago.<\/p>\n<p data-layout-index=\"5\" class=\"speakable\">Known as 1998 KY26, the roughly 36-foot-wide object is believed to be a near-Earth <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578126\" href=\"https:\/\/www.foxnews.com\/category\/science\/air-and-space\/asteroids\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">asteroid<\/a>, but something other than gravity appears to be affecting its path. New research has now cast doubt on one explanation for what is pushing it through space.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578127\" href=\"https:\/\/www.foxnews.com\/category\/science\/air-and-space\/nasa\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">NASA Administrator<\/a> Jared Isaacman weighed in on the growing speculation Thursday morning on &#8220;Fox &amp; Friends,&#8221; saying some in the <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578128\" href=\"https:\/\/www.foxnews.com\/politics\/next-frontier-washington-grapples-its-latest-space-oddity\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">UAP community<\/a> believe the object is making unusual movements, but he has seen no evidence KY26 is anything other than an asteroid.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578129\" href=\"https:\/\/www.foxnews.com\/us\/nasa-chief-confirms-agency-unexplained-ufo-imagery-dont-know-what-it-is\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">NASA CHIEF CONFIRMS AGENCY HAS UNEXPLAINED UFO IMAGERY: &#8216;WE DON&#8217;T KNOW WHAT IT IS&#8217;<\/a><\/p>\n<p data-layout-index=\"5\">&#8220;First of all, nothing is about to hit us, to be very clear on this,&#8221; Isaacman said. &#8220;I&#8217;ve not seen any evidence to suggest this is a threat to our planet or anything other than an asteroid.&#8221;<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2026\/11\/Jared-Isaacman-nasa-001.jpg\" alt=\"NASA Administrator Jared Isaacman speaks into a microphone during a Senate hearing in Washington, D.C.\" width=\"1200\" height=\"675\"\/> <\/p>\n<p>NASA Administrator Jared Isaacman speaks during a Senate hearing in Washington, D.C. (REUTERS)<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578130\" href=\"https:\/\/www.foxnews.com\/travel\/meteorite-crashed-nj-home-holds-building-blocks-life-scientists-say\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">METEORITE THAT CRASHED INTO NJ HOME HOLDS BUILDING BLOCKS OF LIFE, SCIENTISTS SAY<\/a><\/p>\n<p data-layout-index=\"5\">Scientists refer to KY26&#8217;s unusual movement as &#8220;nongravitational acceleration,&#8221; meaning something besides the pull of the sun and planets is affecting its path.<\/p>\n<p data-layout-index=\"5\">One theory has been that KY26 is a &#8220;dark comet&#8221; containing buried water that turns to gas and gives the object a push through space, even though astronomers have not detected the cloud or tail normally associated with a comet.<\/p>\n<p data-layout-index=\"5\">But a new peer-reviewed study by <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578131\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0019103526004276\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Georgia Institute of Technology<\/a> researchers Korbin Hansen and Masatoshi Hirabayashi casts doubt on that explanation.<\/p>\n<p data-layout-index=\"5\">Their study, published in the journal Icarus, found KY26 is likely too warm for buried water ice to survive long enough to account for the unusual movement.<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2026\/11\/asteroid-split-image-nasa.jpg\" alt=\"Two computer-generated shape models of near-Earth object 1998 KY26 shown side by side.\" width=\"1200\" height=\"675\"\/> <\/p>\n<p>Two shape models show scientists&#8217; estimates of the form of near-Earth object 1998 KY26. (Credit: NASA)<\/p>\n<p data-layout-index=\"5\">The researchers concluded that calculated water-loss rates &#8220;preclude 1998 KY26 being a dark comet at present.&#8221;<\/p>\n<p data-layout-index=\"5\">There are other possible explanations. Previous research found that sunlight hitting KY26 and heat escaping from its surface could produce the extra push without buried water.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578132\" href=\"https:\/\/www.foxnews.com\/politics\/harvard-astronomer-tapped-lead-white-house-ufo-council-says-us-government-baffled-what-they-are-seeing\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">HARVARD ASTRONOMER TAPPED TO LEAD WHITE HOUSE UFO COUNCIL SAYS US GOVERNMENT &#8216;BAFFLED BY WHAT THEY ARE SEEING&#8217;<\/a><\/p>\n<p data-layout-index=\"5\">Another group of researchers, however, has explored a far more unusual possibility.<\/p>\n<p data-layout-index=\"5\">Harvard astrophysicist Avi Loeb and researchers Adam Hibberd and Adam Crowl have examined whether KY26 could actually be Phobos 1, an unmanned <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578133\" href=\"https:\/\/avi-loeb.medium.com\/evidence-that-the-dark-comet-1998-ky26-might-be-the-failed-soviet-spacecraft-phobos1-b1332b8d3215\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Soviet spacecraft<\/a> that stopped communicating while traveling to Mars in 1988.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578134\" href=\"https:\/\/www.foxnews.com\/science\/nasa-shuts-voyager-1-instrument-save-power-15b-miles-earth\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">NASA SHUTS OFF VOYAGER 1 INSTRUMENT TO SAVE POWER 15B MILES FROM EARTH<\/a><\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2026\/11\/Phobos-1-NASA-Image.jpg\" alt=\"Illustration of the Soviet Phobos 1 spacecraft near Mars and one of its moons.\" width=\"1200\" height=\"675\"\/> <\/p>\n<p>An illustration shows the Soviet Phobos 1 spacecraft, which was launched toward Mars in July 1988 but lost after a faulty command caused it to shut down. (Credit: NASA)<\/p>\n<p data-layout-index=\"5\">KY26 is about 36 feet across, reflects roughly 52% of the sunlight that hits it and completes a full rotation every 5.35 minutes.<\/p>\n<p data-layout-index=\"5\">The researchers built a simplified model of Phobos 1 and compared the way it would reflect sunlight as it spun with observations of KY26. They found the spacecraft model closely matched eight sets of observations of the object.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578135\" href=\"https:\/\/www.foxnews.com\/tech\/giant-robotic-claws-grab-dead-satellites-space\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">GIANT ROBOTIC CLAWS WILL GRAB DEAD SATELLITES IN SPACE<\/a><\/p>\n<p data-layout-index=\"5\">They also tested whether sunlight pushing against a cylinder or solar panels could help explain KY26&#8217;s movement and found the model better matched hundreds of telescope and radar observations.<\/p>\n<p data-layout-index=\"5\">&#8220;Although an investigation of this kind cannot be conclusive,&#8221; the researchers wrote, the findings &#8220;add strong weight to the Phobos 1 hypothesis.&#8221;<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578136\" href=\"https:\/\/www.foxnews.com\/politics\/nasa-chief-pulls-back-curtain-trump-ufo-files-after-bizarre-finds-surface-buried-fed-records\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">NASA CHIEF PULLS BACK CURTAIN ON TRUMP UFO FILES AFTER BIZARRE FINDS SURFACE IN BURIED FED RECORDS<\/a><\/p>\n<p data-layout-index=\"5\">The researchers stressed, though, that their model does not prove KY26 is the missing spacecraft, describing the theory as &#8220;strongly plausible but presently unproven.&#8221;<\/p>\n<p data-layout-index=\"5\">Other research points to a more conventional answer.<\/p>\n<p data-layout-index=\"5\">A separate study published this year in <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578137\" href=\"https:\/\/www.foxnews.com\/category\/science\/air-and-space\/astronomy\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Astronomy &amp; Astrophysics<\/a> examined the light reflected by KY26 and found its makeup appears consistent with a type of rocky asteroid. Researchers concluded it likely came from the inner part of the asteroid belt.<\/p>\n<p data-layout-index=\"5\">Isaacman said <a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578138\" href=\"https:\/\/www.foxnews.com\/science\/eiffel-tower-sized-asteroid-apophis-pass-closer-earth-many-satellites-2029-nasa-says\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">NASA continues to monitor KY26<\/a> but sees no reason for alarm.<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2026\/11\/asteroid-approaching-earth.jpg\" alt=\"Illustration of giant asteroid in space\" width=\"1200\" height=\"675\"\/> <\/p>\n<p>An illustration shows an asteroid passing near Earth as scientists study the unusual movement of near-Earth object 1998 KY26 and whether it could be a long-lost Soviet spacecraft. (istock)<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578139\" href=\"https:\/\/www.foxnews.com\/tips\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">SEND US A TIP<\/a><\/p>\n<p data-layout-index=\"5\">&#8220;I have no reason to believe this is in any way remotely a threat to our planet or anything other than just an asteroid,&#8221; he said.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578140\" href=\"https:\/\/www.foxnews.com\/tips\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">GOT A TIP?<\/a><\/p>\n<p data-layout-index=\"5\">Scientists may eventually get a definitive answer.<\/p>\n<p data-layout-index=\"5\">The Japan Aerospace Exploration Agency&#8217;s Hayabusa2 spacecraft is scheduled to rendezvous with KY26 in July 2031, according to a 2025 study published in Nature Communications.<\/p>\n<p data-layout-index=\"5\"><a data-omtr-intcmp=\"fnc_us_article_main-content_article-body_6_578141\" href=\"https:\/\/www.foxnews.com\/newsletters\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">GET BREAKING NEWS BY EMAIL<\/a><\/p>\n<p data-layout-index=\"5\">For Loeb, that encounter could provide the ultimate test of the Phobos 1 theory.<\/p>\n<p data-layout-index=\"5\"><a href=\"https:\/\/foxnews.onelink.me\/xLDS?pid=AppArticleLink&amp;af_dp=foxnewsaf%3A%2F%2F&amp;af_web_dp=https%3A%2F%2Fwww.foxnews.com%2Fapps-products\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">CLICK HERE TO DOWNLOAD THE FOX NEWS APP<\/a><\/p>\n<p data-layout-index=\"5\">&#8220;Our prediction is that instead of an iceberg, Hayabusa 2\u2019s cameras will reveal the label &#8216;Made in the U.S.S.R.,'&#8221; Loeb wrote.<\/p>\n<p>Greg Wehner is a reporter for Fox News Digital covering U.S. news and crime, with a focus on breaking developments, law enforcement, public safety and major stories shaping communities across the country.<\/p>\n","protected":false},"excerpt":{"rendered":"NEWYou can now listen to Fox News articles! A mysterious object speeding through the solar system is accelerating&hellip;\n","protected":false},"author":2,"featured_media":915326,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[46318,6949,6626,718,79,46320,25],"class_list":["post-915325","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-air-and-space","tag-asteroids","tag-astronomy","tag-nasa","tag-science","tag-spaceflight","tag-us"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/915325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=915325"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/915325\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/915326"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=915325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=915325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=915325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}