ᴀ ᴘʟᴀɴᴇᴛ sɪᴍɪʟᴀʀ ᴛᴏ ᴇᴀʀᴛʜ ᴡᴀs ʟᴏᴄᴀᴛᴇᴅ ʙᴇᴛᴡᴇᴇɴ sᴀᴛᴜʀɴ ᴀɴᴅ ᴜʀᴀɴᴜs

A team of researchers from Carnegie Mellon University has found evidence that the solar system once had a ninth planet similar to Earth. Scientists beRead More…