Redirected from List of rare diseases/P
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
... radius of Oort cloud
9 500 000 million km -- One light year, the distance travelled by light in one year.
Distances longer than 1016 m
See also: Orders of ...
Kids.Net.Au - kids safe portal for children, parents, schools and