Do other planets have moons? Detailed answer

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Do other planets have moons? Detailed answer

Big encyclopedia for children and adults

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Do other planets have moons?

Yes. Only Mercury and Venus do not have moons. The Earth has a Moon, Mars has two satellites, Phobos and Deimos (Greek for Fear and Horror). Jupiter has more than 16 of them, Saturn has at least 18, and even a ring, Uranus has at least 20 moons, Neptune has six. Even demoted in August 2006 to minor planets, Pluto has a rather large (diameter 1000 km) satellite - Charon.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

What famous footballer was named after the American president?

Cristiano Ronaldo is not a first and last name, but a double name. Moreover, the name Ronaldo is quite rare for Portugal, and the boy got it because his father was a fan of the then US President Ronald Reagan.

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Random news from the Archive

Work has begun on deciphering the Christmas tree 02.12.2010

One of the charitable foundations allocated about seven million dollars to the University of the Swedish city of Umea to decipher the genome of the common spruce. This tree, which is sold in myriads before Christmas, is estimated to bring more money into the Swedish treasury in the form of taxes than any other species.

The first, draft version of the genome map should be ready by 2013. According to preliminary estimates, a Christmas tree has about the same number of genes as a person, but they are repeated many times, as a result, the total genome is 7-10 times larger than a human one. The number of chromosomes in spruce cells is 12 (humans have 46), so the genes are packed very tightly.

Knowing the structure of spruce heredity, it will be possible to select specimens with the best properties for reproduction.

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