The sizes range from dwarf-planet size down to tiny shepherding moons among the rings. The two largest moons, Ganymede and Callisto, are 5200 and 4800 km in diameter respectively, nearly half the size of Earth. One of the smallest, Mneme, is only 2 km in diameter, and newly discovered moons are likely to be smaller still.
Mars has two moons, both of which are very small. Phobos masses 1x10^16 kg. Deimos masses 1.8x10^15, and is small enough that with a really good kick off its surface you could achieve escape velocity.
In comparison, earth's moon is 7.4x10^22 kg. That is seven million times heavier than Phobos. Their sizes are roughly comparable to their masses.
some are bigger than the inner planets such as titan
The equatorial radius of the moon is 1,738.14 km,
while the equatorial radius of Mars is 3,396.2 ± 0.1 km.
there are 63 moons and 4 of them are big
deimos is 12.6km and phabos is 22.2km
i think Phobos i larger than Deimos
Its Calisto,Ganymede,Europa, and Io
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Jupiter dosent have a surface. And if it did, you wouldn't be able to see the moons because of the 30 mile thick clouds!
Europa
Europa is one of Jupiters moons. Jupiter has many moons, but Europa is one of the four large moons that was discovered in 1610 by Galileo Galilei (and possibly independently by Simon Marius around the same time).
Its Calisto,Ganymede,Europa, and Io
large from small are Ganymede, Europa, Callisto, and Io.
jupiters ice moon is Io
we can't use jupiters moons for anything because fistly we can not get out that far to reach Jupiters moon and if we could it would take thousands of years and Jupiters Moons would be to big to do anything with anyway. so the answer to What could Jupiter's moons be used for? is....Nothing.
Socrates, Gallileo
it's moons
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Jupiters Moons
Jupiter dosent have a surface. And if it did, you wouldn't be able to see the moons because of the 30 mile thick clouds!
jupiters moons are different some have an atmosphere and MOST are asteroids
Europa has frozen oceans.
They all are affected but the most noticeable is Io. There are often plumes of dust and gas showing from volcanic activity.