as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what was the most recent discovery in astronomy?
user
the most recently discovered object in the field of astronomy is the object called 2020 so. it is a fifth earth-like planet in the solar system beyond neptune's orbit. it is suspected to have been ejected from the solar system billions of years ago.
assistant