1 Eris is the most massive dwarf planet in the Solar System, exceeding Plutoâs mass by 28%. As such, it was a serious contender to be a tenth planet but failed to meet the criteria set out by the International Astronomical Union in 2006.  Eris was named after the Greek goddess of discord.
According to the American Urological Association, the time to pass stones located in ureters -- tubes leading from the kidneys to the bladder -- is an average of 8 days for stones less than 2 mm, 12 days for stones between 2 and 4 mm and 22 days for stones between 4 and 6 mm.
How Long Will Your Kidney Stone Take To Pass? If you have the symptoms of a kidney stone, head to your doctorâs office. They will be able to tell you the approximate size of the stone. Then you both can discuss treatment options. Maybe they are confident it can pass on itâs own. You will go home with pain medication to help you through that process.