{"id":1077,"date":"2026-05-03T13:00:00","date_gmt":"2026-05-03T13:00:00","guid":{"rendered":"https:\/\/rjbarrett.redirectme.net\/?p=1077"},"modified":"2026-05-03T13:00:00","modified_gmt":"2026-05-03T13:00:00","slug":"%e3%81%bf%e3%81%9a%e3%81%8c%e3%82%81%e5%ba%a7%e3%82%a4%e3%83%bc%e3%82%bf%e6%b5%81%e6%98%9f%e7%be%a4%e3%81%af%e4%bb%8a%e9%80%b1%e3%83%94%e3%83%bc%e3%82%af%e3%82%92%e8%bf%8e%e3%81%88%e3%81%be%e3%81%99","status":"publish","type":"post","link":"https:\/\/rjbarrett.redirectme.net\/?p=1077","title":{"rendered":"\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u6d41\u661f\u7fa4\u306f\u4eca\u9031\u30d4\u30fc\u30af\u3092\u8fce\u3048\u307e\u3059\u3002\u6700\u9ad8\u306e\u666f\u8272\u3092\u5f97\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div>\n<div class=\"article_date_and_read_time-hPdNV\">\n<p class=\"article_pub_date-zPFpJ\">2026 \u5e74 5 \u6708 3 \u65e5<\/p>\n<p class=\"article_read_time-ZYXEi\">2<!-- --> 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alt=\"Google\u306e\u30ed\u30b4\"\/> <span class=\"google_cta_text-ykyUj\"><span class=\"google_cta_text_desktop-wtvUj\">Google \u306b\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044<\/span><span class=\"google_cta_text_mobile-jmni9\">\u30b5\u30a4\u30a2\u30e0\u3092\u8ffd\u52a0<\/span><\/span><span class=\"google_cta_icon-pdHW3\"\/><\/div>\n<p>\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u6d41\u661f\u7fa4\u306f\u4eca\u9031\u30d4\u30fc\u30af\u3092\u8fce\u3048\u307e\u3059\u3002\u6700\u9ad8\u306e\u666f\u8272\u3092\u5f97\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059<\/p>\n<div class=\"article_dek-vct0y\">\n<p>\u3053\u306e\u6bce\u5e74\u6052\u4f8b\u306e\u6d41\u661f\u7fa4\u306f\u3001\u30cf\u30ec\u30fc\u5f57\u661f\u304c\u592a\u967d\u306e\u5468\u308a\u3092\u79fb\u52d5\u3059\u308b\u3068\u304d\u306b\u5730\u7403\u304c\u6b8b\u3057\u305f\u5875\u306e\u591a\u3044\u7834\u7247\u3092\u901a\u904e\u3059\u308b\u3068\u304d\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<p class=\"article_authors-ZdsD4\">\u30a2\u30c0\u30e0\u30fb\u30b3\u30f4\u30a1\u30c3\u30af\u8457 <span class=\"article_editors__links-aMTdN\">\u30af\u30ec\u30a2\u30fb\u30ad\u30e3\u30e1\u30ed\u30f3\u7de8\u96c6<\/span><\/p>\n<figure class=\"lead_image-Hfr4j\"><img decoding=\"async\" src=\"https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=600\" alt=\"2012 \u5e74 4 \u6708 29 \u65e5\u306b\u3001\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u6d41\u661f\u304c\u30b8\u30e7\u30fc\u30b8\u30a2\u5dde\u5317\u90e8\u306b\u6d41\u308c\u307e\u3059\u3002\" srcset=\"https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=600 600w, https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=900 900w, https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=1000 1000w, https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=1200 1200w, https:\/\/static.scientificamerican.com\/dam\/asset\/9719b744-251e-4b2f-8380-9cf7aa87cea0\/Eta-Aquarids.jpg?m=1777660599.498&amp;w=1350 1350w\" sizes=\"(min-width: 900px) 900px, (min-resolution: 2dppx) 75vw, (min-resolution: 2.1dppx) 50vw, 100vw\" class=\"lead_image__img-xKODG\" style=\"--w:768;--h:576\" fetchpriority=\"high\"\/><figcaption class=\"lead_image__figcaption-jJomN\"> <\/figcaption><\/figure>\n<\/div>\n<div>\n<p class=\"\" data-block=\"sciam\/paragraph\">5\u6708\u306b\u306a\u308a\u3001\u6728\u3005\u306e\u7dd1\u304c\u5897\u3057\u3001\u65e5\u304c\u9577\u304f\u306a\u308a\u3001\u591c\u306f\u5c11\u3057\u6696\u304b\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u5358\u306a\u308b\u6d41\u661f\u7fa4\u3067\u306f\u306a\u304f\u3001\u6d41\u661f\u7fa4\u3092\u898b\u308b\u306e\u306b\u6700\u9069\u3067\u3059\u3002\u4eca\u9031\u306e 5 \u6708 5 \u65e5\u3068 6 \u65e5\u306b\u3001\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u5ea7\u304c\u30d4\u30fc\u30af\u3092\u8fce\u3048\u307e\u3059\u3002<\/p>\n<p class=\"\" data-block=\"sciam\/paragraph\">\u6d41\u661f\u7fa4\u306f\u5b87\u5b99\u306e\u7834\u7247\u306e\u7f8e\u3057\u3044\u7523\u7269\u3067\u3059\u3002\u5730\u7403\u304c\u592a\u967d\u306e\u5468\u308a\u3092\u5468\u56de\u3059\u308b\u3068\u304d\u3001\u5c0f\u60d1\u661f\u3084\u5f57\u661f\u304c\u661f\u306e\u5468\u308a\u3092\u79fb\u52d5\u3059\u308b\u969b\u306b\u3001\u305d\u308c\u3089\u304b\u3089\u843d\u4e0b\u3059\u308b\u5875\u3084\u5ca9\u77f3\u306e\u9053\u3092\u901a\u308a\u307e\u3059\u3002\u3053\u306e\u7834\u7247\u304c\u5730\u7403\u306e\u5927\u6c17\u570f\u306b\u9054\u3059\u308b\u3068\u71c3\u3048\u4e0a\u304c\u308a\u3001\u7a7a\u3092\u6a2a\u5207\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u660e\u308b\u3044\u6d41\u308c\u661f\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p class=\"\" data-block=\"sciam\/paragraph\">\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u661f\u7fa4\u306f\u3001\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u661f\u7fa4\u3068\u3082\u547c\u3070\u308c\u3001\u305d\u306e\u540d\u524d\u306f\u3001\u307f\u305a\u304c\u3081\u5ea7\u3067\u6700\u3082\u660e\u308b\u3044\u6052\u661f\u3067\u3042\u308b\u307f\u305a\u304c\u3081\u5ea7\u30a4\u30fc\u30bf\u5ea7\u4ed8\u8fd1\u306e\u9818\u57df\u304b\u3089\u767a\u751f\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u7a7a\u306e\u70b9\u306b\u7531\u6765\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u6d41\u661f\u306f\u5b9f\u969b\u306b\u306f\u30cf\u30ec\u30fc\u5f57\u661f\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u3001\u30cf\u30ec\u30fc\u5f57\u661f\u306f 1P\/\u30cf\u30ec\u30fc\u5f57\u661f\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u540d\u524d\u306f\u3001\u30a2\u30a4\u30b6\u30c3\u30af 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\u3064\u306f\u30011066 \u5e74\u306b\u8d77\u304d\u305f\u4e8b\u4ef6\u3067\u3057\u3087\u3046\u3002\u3053\u306e\u5f57\u661f\u306f\u82f1\u56fd\u306e\u7a7a\u89b3\u5bdf\u8005\u306b\u3088\u3063\u3066\u76ee\u6483\u3055\u308c\u3001\u305d\u306e\u5f8c\u306e\u30d8\u30a4\u30b9\u30c6\u30a3\u30f3\u30b0\u30ba\u306e\u6226\u3044\u3067\u306e\u30a2\u30f3\u30b0\u30ed\u30b5\u30af\u30bd\u30f3\u738b\u306e\u6557\u5317\u3092\u4e88\u8a00\u3059\u308b\u524d\u5146\u3068\u89e3\u91c8\u3055\u308c\u305f\u3002\u30d0\u30a4\u30e6\u30fc\u30bf\u30da\u30b9\u30c8\u30ea\u30fc\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure class=\"image-Xxchw default-2Vnj5\" data-block=\"contentful\/image\" style=\"--w:776;--h:502\"><picture><source media=\"(min-width: 0px)\" srcset=\"https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=600 600w, https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=750 750w, https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=776 776w\" sizes=\"(min-width: 776px) 776px, (min-resolution: 3dppx) 50vw, (min-resolution: 2dppx) 75vw, 100vw\"\/><img alt=\"\u30d0\u30a4\u30e6\u30fc\u306e\u30bf\u30da\u30b9\u30c8\u30ea\u30fc\u306b\u523a\u7e4d\u3055\u308c\u305f\u51e7\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=776\" width=\"776\" height=\"502\" srcset=\"https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=600 600w, https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=750 750w, https:\/\/static.scientificamerican.com\/dam\/asset\/cc5b3aee-23ec-47cd-861c-64d1922cf871\/bayeux-tapestry-comet.jpg?m=1777648969.068&amp;w=776 776w\" sizes=\"auto, (min-width: 776px) 776px, (min-resolution: 3dppx) 50vw, (min-resolution: 2dppx) 75vw, 100vw\"\/><\/picture><figcaption>\n<div>\n<p>\u897f\u66a61070\u5e74\u4ee3\u306b\u4f5c\u3089\u308c\u305f\u30d0\u30a4\u30e6\u30fc\u306e\u30bf\u30da\u30b9\u30c8\u30ea\u30fc\u306b\u63cf\u304b\u308c\u305f\u5f57\u661f<\/p>\n<\/div>\n<\/figcaption><\/figure>\n<p class=\"\" data-block=\"sciam\/paragraph\">\u30cf\u30ec\u30fc\u5f57\u661f\u304c\u592a\u967d\u7cfb\u5185\u90e8\u3092\u901a\u904e\u3057\u3066\u304b\u3089 40 \u5e74\u304c\u7d4c\u904e\u3057\u3001\u518d\u3073\u901a\u904e\u3059\u308b\u306e\u306f 2061 \u5e74\u307e\u3067\u3067\u3059\u30021986 \u5e74\u306b\u6b27\u5dde\u5b87\u5b99\u6a5f\u95a2\u306e\u30b8\u30aa\u30c3\u30c8\u63a2\u67fb\u6a5f\u304c\u5f57\u661f\u306e\u6838\u306e\u753b\u50cf\u3092\u8fd4\u3057\u3001\u540c\u5e74\u306b\u306f\u30bd\u9023\u306e\u63a2\u67fb\u6a5f 2 \u6a5f\u3068\u65e5\u672c\u306e\u63a2\u67fb\u6a5f 2 \u6a5f\u3082\u5f57\u661f\u306e\u753b\u50cf\u3092\u64ae\u5f71\u3057\u307e\u3057\u305f\u3002<\/p>\n<figure class=\"image-Xxchw default-2Vnj5\" data-block=\"contentful\/image\" style=\"--w:1836;--h:960\"><picture><source media=\"(min-width: 0px)\" srcset=\"https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1000 1000w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1200 1200w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1350 1350w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1836 1836w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=600 600w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=750 750w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=900 900w\" sizes=\"(min-width: 1836px) 1836px, (min-resolution: 3dppx) 50vw, (min-resolution: 2dppx) 75vw, 100vw\"\/><img alt=\"1986\u5e74\u306b\u6b27\u5dde\u5b87\u5b99\u6a5f\u95a2\u306e\u30b8\u30aa\u30c3\u30c8\u63a2\u67fb\u6a5f\u306b\u3088\u3063\u3066\u767a\u898b\u3055\u308c\u305f\u30cf\u30ec\u30fc\u5f57\u661f\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=900\" width=\"1836\" height=\"960\" srcset=\"https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1000 1000w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1200 1200w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1350 1350w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=1836 1836w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=600 600w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=750 750w, https:\/\/static.scientificamerican.com\/dam\/asset\/55be5dc3-2fac-4283-aaaa-06f52aff225f\/halley-comet.jpg?m=1777660864.31&amp;w=900 900w\" sizes=\"auto, (min-width: 1836px) 1836px, (min-resolution: 3dppx) 50vw, (min-resolution: 2dppx) 75vw, 100vw\"\/><\/picture><figcaption>\n<div>\n<p>1986\u5e74\u306b\u6b27\u5dde\u5b87\u5b99\u6a5f\u95a2\u306e\u63a2\u67fb\u6a5f\u30b8\u30aa\u30c3\u30c8\u306b\u3088\u3063\u3066\u767a\u898b\u3055\u308c\u305f\u30cf\u30ec\u30fc\u5f57\u661f\u3002<\/p>\n<\/div>\n<\/figcaption><\/figure>\n<p class=\"\" data-block=\"sciam\/paragraph\">\u6bce\u5e74\u6052\u4f8b\u306e\u30a4\u30fc\u30bf\u30a2\u30af\u30a2\u30ea\u30c3\u30c9\u30b7\u30e3\u30ef\u30fc\u306f\u3001\u6bce\u5e74 5 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