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Since a year on Mars is 687 Earth days, if you were 10 years old on Earth, you would be around 5 years old on Mars based on their respective orbital periods.
The distance between the Earth and the Moon is increasing at a rate of about 1.5 inches (3.8 cm) per year due to tidal forces. In ten million years, the Moon will be significantly farther from Earth, but the exact distance is difficult to predict due to various factors influencing orbital dynamics.
Earth is about 1.88 times larger than Mars.
Here are some major differences:Mars has two moons (Phobos and Deimos) while Earth has one (the Moon).Earth has an atmosphere breathable by humans; Mars does not. (The atmosphere on Mars is almost all carbon dioxide.)Earth has higher gravity than Mars.The deepest canyon on Mars (Valles Marineris) is 4 times as deep and ten times as long as the deepest canyon on Earth (Grand Canyon).Mars has a year of 687 Earth-days.The surface temperature of Mars is much, much colder. Earth is about 57 degrees (F) compared to -87 degrees (F) on Mars.
If you were 10 Earth years old on Jupiter, you would be around 0.55 Jupiter years old. This is because a year on Jupiter is about 11.86 Earth years. So, 10 Earth years would only be a fraction of a full Jupiter year.
No, Mars is much smaller than Earth, but both planets have similar amount of dry land. Mars has a diameter of 6,792 kilometers = 4,220 miles at the equator. Earth has a diameter of 12,756.32 kilometers = 7,926 miles at the equator. By size, one typically refers to volume. In this respect Earth is about 6.6 times larger than Mars.Scroll down to related links and look at "Table of exact data on Mars vs. Earth ratios provided by NASA"