Snowfall is measured to the nearest tenth of an inch.
The world's most famous geyser, Old Faithful in Yellowstone, currently erupts around 20 times a day.
In the early days of the park, Old Faithful was often used as a laundry.
The Kepler 11145123 star, discovered in 2016, is the roundest natural object ever measured.
Singing sand dunes are rare.