Uploaded October 2018 | Updated September 2026, 2 weeks ago
Scott Sheppard, an astronomer at Carnegie's Department of Terrestrial Magnetism, introduces newly found dwarf planet 2015 TG387. Nicknamed "the Goblin," this new extremely distant object beyond has an orbit that strengthens the case for the existence of a still undiscovered Planet X. Read more: bit.ly/2OwJ05C
Scott Sheppard, an astronomer at Carnegie's Department of Terrestrial Magnetism, introduces newly found dwarf planet 2015 TG387. Nicknamed "the Goblin," this new extremely distant object beyond has an orbit that strengthens the case for the existence of a still undiscovered Planet X. Read more: bit.ly/2OwJ05C










