Is there a planet proved in Science named "Nibiru"?
No, it's hypothetical as proposed by Sitchin
Yes, it's located beyond Neptune
Yes, it's a newly discovered dwarf planet
No, "Nibiru" is a term from ancient texts
Answer
The planet Nibiru does not exist. It is a hypothetical planet proposed by Zecharia Sitchin, who wrote a series of books on the subject. His theories have been discredited by the scientific community, and there is no evidence to support the existence of Nibiru.
The Mythical World of Zecharia Sitchin: Exploring Ancient Astronauts through English Quiz