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In terms of radius, Mars is about half the size of the Earth. It also has two moons called Phobos and Deimos

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What is half the size of earth has two moons and has a atmosphere of mostly carbon dioxide?

The planet that is half the size of the earth, has 2 moons, and has an atmosphere of mostly carbon dioxide is Mars. The average length of a day on Mars is 37 minutes longer than that of the Earth.


What two planets are closest in size?

The two planets that are closest in size to Earth are it's neighbours: Venus and Mars. Of the two, Venus is nearly the same size, with a diameter of 12,104km (compared to Earth's diameter of 12,756km). Mars is smaller - almost half the size of Earth - with a diameter of 6792km.


What are two planets with moons?

Jupiter and Earth. The only two that don't have moons are Mercury and Venus.


What the size of the two moons?

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Which two planets are half the size of the earth?

Mars and Mercury are the two planets that are about half the size of Earth. Mars has a diameter of approximately 6,779 kilometers, which is about 53% of Earth's diameter, while Mercury's diameter is around 4,880 kilometers, making it about 38% the size of Earth. Both planets have significantly smaller volumes and masses compared to Earth.


Did two moons once orbit earth?

No


Does the earth have one or two moons?

One.


Does earth or Mars have moons?

Yes. Moons are large celestial bodies that orbit planets. Earth's moon is the Moon (Luna) and Mars has two moons, Phobos and Deimos.


A planet that has at least one moon?

A planet that has at least one moon is called a natural satellite. Moons vary in size, with some being larger than planets. Earth, for example, has one moon, while Jupiter has over 80 known moons.


What makes mars different from earth?

It have two moons


What are the two planets the same size as earth?

The only planet close to earth in size is Venus, which is only 5% smaller. The second closest is Mars, which is just over half the diameter of earth.


Does the Mars have moons?

Yes, Mars has two moons - Phobos and Deimos. They are irregularly shaped and are much smaller compared to Earth's moon.