Pluto 1930 yilda kashf etilgan va 2006 yilgacha Quyosh tizimining to'qqizinchi sayyori deb hisoblangan. O'sha yili Xalqaro astronomiya uyushmasi (IAS) Plutonni istisno qilib, uni burchak sayyora sifatida tasniflaydigan sayyoralar uchun yangi ta'rif berdi.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence