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.
The pain of a kidney stone can be excruciating, so it's only natural to want to know how long it'll take to pass. The bad news is, it could be anywhere from hours to weeks--but with proper treatment, you can stay comfortable as you wait for it to pass.he kidney stone travels through the ureter into the bladder, then out through the urethra, usually in the flow of urine. The kidney stone can get stuck at any point in this journey, which can cause swelling and damage to any part of the urinary system. The longer it's stuck, the more damage it can cause.