In corn, purple kernels (P) are dominant to yellow kernels (p). You have a plant with an unknown genotype that has a phenotype of purple kernels. You perform a testcross and find that all of the offspring are purple.
The layout of the solar system, including the Oort Cloud, on a logarithmic scale. Credit: NASA. In the furthest reaches of the Solar System is the Oort Cloud; a theorized cloud of icy objects that could orbit the Sun to a distance of 100,000 astronomical units, or 1.87 light-years away.
However the size of observable universe is about: 46 Billion Light Years which is about... 2.70410991 Ã 10^23 miles (I can't even pronounce it without using mathematical terms) nor i can phantom how big that is. note: one light year is the distance a light could travel within one year.