What is a voiding cystourethrogram (VCUG)? A voiding cystourethrogram (VCUG) allows us to evaluate your child's urethra and bladder size, shape, and capacity. This procedure uses x-rays and a contrasting agent that is administered by catheter into your childâs bladder. A VCUG can also help us determine whether your child has reflux â a condition where urine from the bladder goes upward back to the kidneys.
Finally, after five years of searching, on August 30, 1992, Jewitt and Luu announced the Discovery of the candidate Kuiper belt object (15760) 1992 QB1. Six months later, they discovered a second object in the region, (181708) 1993 FW.
Composition: There have been more than a thousand objects discovered in the Kuiper Belt, and itâs theorized that there are as many as 100,000 objects larger than 100 km in diameter. Given to their small size and extreme distance from Earth, the chemical makeup of KBOs is very difficult to determine.f we come back in another hundred million years, thereâll be no Kuiper Belt left. Dr. Mike Brown is a professor of planetary astronomy at Caltech. Heâs best known as the man who killed Pluto, thanks to his teamâs discovery of Eris and other Kuiper Belt Objects.