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Memecah Misteri Planet Kesembilan Kemungkinan munculnya Planet Kesembilan dalam sistem tata surya masih menjadi misteri. Walaupun begitu, Badan Antariksa Amerika Serikat (NASA) yakin soal keberadaanya.
Bahkan NASA mengklaim telah mengantongi sejumlah banyak bukti untuk memperkuat pernyataan tersebut.
Beberapa bukti itu, misalnya ada pengaruh aneh terhadap Sabuk Kuiper, sebuah wilayah di Tata Surya yang berada di sekitar orbit Neptunus. Menurut NASA, pengaruh aneh itu berasal dari planet tersebut, yang dicurigai 'mengintai' dari kejauhan. Diperkirakan, planet ini memiliki 10 kali massa Bumi, serta lokasinya 20 kali lebih jauh dibanding jarak antara Matahari dengan Neptunus, yang notabene merupakan planet terluar dalam sistem tata surya.
“Ada lima teori dari bukti hasil observasi yang mengarah pada eksistensi Planet Nine," ujar Konstantin Batygin, astrofisikawan planet dari Caltech yang membawahi penemuan ini, seperti dikutip Uzone.id dari Mirror. "Jika kalian mengimajinasikan kalau Planet Nine tidak eksis, maka kalian malah mengumpulkan lebih banyak masalah. Kalian memiliki lima teka-teki berbeda dan harus punya lima teori berbeda untuk menjelaskannya," kata dia.
Paling terbaru, kemunculan Planet Nine melibatkan objek dari Sabuk Kuiper yang memiliki arah orbit berkebalikan dengan seluruh benda antariksa yang ada di dalam tata surya. Pengaruh orbital dari Planet Nine dapat menjelaskan mengapa objek tersebut dapat bertindak aneh di Sabuk Kuiper. Menurut Kosntantin, tidak ada opsi lain untuk menjelaskan keanehan tersebut kecuali eksistensi Planet Nine.