According to this website, the planets Uranus, Neptune and Pluto were mentioned in the Mahabharata. The site cites the following verses:
Vishesheena hi Vaarshneya Chitraam Pidayate Grahah….[10-Udyog.143]
Swetograhastatha Chitraam Samitikryamya Tishthati….[12-Bheeshma.3]
The above verses is said to be talking about the planet Uranus.
The following verses are said to be talking about the planet Neptune:
Shukrahah Prosthapade Poorve Samaruhya Virochate Uttare tu Parikramya Sahitah Samudikshyate….[15-Bheeshma.3]
Syamograhah Prajwalitah Sadhooma iva Pavakah Aaindram Tejaswi Naksha- tram Jyesthaam Aakramya Tishthati…[16-Bheeshma.3]
And these verses are said to be talking about the planet Pluto:
Krittikaam Peedayan Teekshnaihi Nakshatram…[30-Bheeshma.3]
Krittikasu Grahasteevro Nakshatre Prathame Jvalan…… [26- Bhishma.3]
Are these claims authentic and hold any scriptural basis? Do any scripture "apart from the Mahabharata" talk about the planets Uranus, Neptune and Pluto?