Ilmuwan temukan sistem planet terbalik yang tidak biasa

Para astronom telah menemukan sistem planet di sekitar bintang katai merah di mana sebuah dunia berbatu mengorbit di luar dua planet raksasa gas, yang menantang model standar tentang bagaimana planet terbentuk. Penemuan di sekitar LHS 1903 ini menunjukkan bahwa planet mungkin muncul secara berurutan, bukan sekaligus.

Para peneliti yang dipimpin oleh Thomas Wilson di University of Warwick mengidentifikasi sistem empat planet tersebut menggunakan data dari berbagai teleskop, termasuk satelit Cheops milik European Space Agency. Planet-planet tersebut mengikuti urutan yang tidak terduga yaitu berbatu, gas, gas, dan berbatu, dengan dunia terluar yang tampaknya terbentuk di lingkungan yang kekurangan gas setelah planet-planet lainnya terbentuk lebih dulu.

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