The number of victims depends on which definition of the Holocaust is used. Donald Niewyk and Francis Nicosia write in The Columbia Guide to the Holocaust that the term is commonly defined as the mass murder of more than five million European Jews.
A colour photograph of Uranus, taken by Voyager 2 in 1986 as it headed towards the planet Neptune. The exploration of Uranus has, to date, been solely through telescopes and NASA 's Voyager 2 spacecraft, which made its closest approach to Uranus on January 24, 1986.Voyager 2 discovered 10 moons, studied the planet's cold atmosphere, and examined its ring system, discovering two new rings.he Uranian moon Miranda, imaged by Voyager 2. Uranus is the third-largest planet in the Solar System. It orbits the Sun at a distance of about 2.8 billion kilometers (1.7 billion miles) and completes one orbit every 84 years. The length of a day on Uranus as measured by Voyager 2 is 17 hours and 14 minutes.
Uranus by Voyager 2. The atmosphere of Uranus, like those of the larger gas giants, Jupiter and Saturn, is composed primarily of hydrogen and helium. At depth it is significantly enriched in volatiles (dubbed ices) such as water, ammonia and methane.