Ryder System, Inc. History. Ryder System, Inc. was founded in 1933 by James Ryder as a concrete hauling company with one truck. The business expanded quickly into leasing trucks to other companies, under the name Ryder Truck Rental.
Pluto is thought to be made of mostly ice. It probably also has a small rocky core which might contain some metals. The ice on the surface of Pluto is made of frozen nitrogen, methane and carbon monoxide. The ice covering Pluto reflects a lot of sunlight making it appear brighter than it would if it had been covered with a darker rocky material. 1  Javascript must be enabled to use Cool Cosmos.
A gas giant is a giant planet composed mainly of hydrogen and helium. Jupiter and Saturn are the Solar System 's gas giants. The term gas giant was originally synonymous with giant planet, but in the 1990s it became known that Uranus and Neptune are really a distinct class of giant planet, being composed mainly of heavier volatile substances (which are referred to as 'ices').