Tiga tahun lalu sebuah asteroid yang memiliki bentuk seperti tengkorak telah diketahui terbang di dekat Bumi, dan diperkirakan hal tersebut akan terulang kembali setelah ??r?y??n H?ll?w??n, ?nt?r? ?khir ?kt?b?r d?n ?w?l N?v?mb?r 2018. Dijuluki Th? Gr??t ?um?kin ?l?h ??r? ??j?b?t di N?S?, ?st?r?id 2015 TB145 ?k?n m?lint?s d?ng?n j?r?k 24 jut? mil d?ri Bumi ??d? 11 N?v?mb?r, k?t? ?g?nsi t?rs?but.
S?m?nt?r? mungkin t?rd?ng?r j?uh, s?b?g?i?m?n? dikuti? d?ri Ind???nd?nt.c?.uk ??d? Minggu (30/9/2018), k?ns?? ru?ng ?ngk?s? m?nil?iny? s?b?g?i j?r?k y?ng r?l?tif d?k?t, y?kni s?kit?r s???r?m??t j?uhny? ?nt?r? Bumi d?n M?t?h?ri.
?st?r?id t?rs?but m?miliki di?m?t?r s?kit?r 600 m?t?r, di m?n? t?r?khir m?lint?s d?k?t d?ng?n Bumi ??d? 31 ?kt?b?r 2015, y?kni d?l?m j?r?k 300.000 mil, ?t?u s?t?r? d?ng?n 482 ribu kil?m?t?r. ??d? s??t itu, ??nggun? m?di? s?si?l m?njulukiny? s?b?g?i "k?m?t k?m?ti?n", k?r?n? ??n?m?il?nny? y?ng m?ny?r?mk?n.
K?lly F?st, s??r?ng ilmuw?n ?r?gr?m di N?S?, m?ng?t?k?n s??t itu: "D?t? IRTF (Infr?r?d T?l?sc??? F?cility) mungkin m?nunjukk?n b?hw? ?bj?k itu m?ru??k?n k?m?t m?ti, t??i ... t?m??kny? t?l?h m?ng?n?k?n k?stum t?ngk?r?k."
??j?b?t di ?g?nsi t?rk?it t?l?h t?rus m?ng?m?ti ??rg?r?k?n ?st?r?id t?rk?it d?ri f?silit?s t?l?sk?? di H?w?ii.
B?k?s K?m?t y?ng ?un?h
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Ilustr?si huj?n m?t??r ??rs?id (Wiki??di? c?mm?ns)
??r? ilmuw?n ??rc?y? ?st?r?id t?ngk?r?k itu ?d?l?h s?bu?h k?m?t y?ng t?l?h ?un?h, ?t?u sis?-sis? b?tu d?ri k?m?t y?ng dingin d?ng?n m?ngul?ngi ??rt?mu?n j?r?k d?k?t k? M?t?h?ri.
S??t k?m?t m?nd?k?t k? t?t? sury? s?l?m? ?rbitny?, ??n?s m?ngub?h ?s m?r?k? m?nj?di g?s, y?ng k?mudi?n m?njunt?i k? ru?ng ?ngk?s? d?n m?nci?t?k?n ?k?r k?r?kt?ristikny?. S?mu? y?ng ?khirny? t?rsis? ?d?l?h b?tu, m?nj?dik?nny? s?bu?h ?st?r?id, j?l?s ??n?liti t?rk?it.
TB145 dikl?sifik?sik?n s?b?g?i "b?nd? b?r??t?nsi b?h?y?" k?r?n? ukur?n d?n k?d?k?t?nny? d?ng?n Bumi. T?t??i, ??r? ?str?n?m y?ng t?l?h m?l?c?k lint?s?nny?, m?ng?t?k?n tid?k ?d? k?mungkin?n ?k?n b?rt?br?k?n d?ng?n ?l?n?t ini.
J?r?k t?rd?k?t b?rikutny? tid?k ?k?n t?rj?di l?gi s?m??i 2088, k?tik? b?r?d? d?l?m j?r?k 5,4 jut? mil
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