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.
As mentioned, a kidney stone does not normally cause symptoms simply by sitting in the kidneys . However, stones can sometimes move through the ureter towards the bladder and begin causing issues, depending on certain factors. The symptoms of passing a kidney stone in men, for instance, can sometimes be affected by prostate size. Other factors include the actual size of the person, whether they have been able to pass kidney stones in the past, and the size of the stone itself.