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Q: Why was mars once considered similar to earth?
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Are earth and Mars similar?

Yes, they are similar in size, and there is evidence that there was once water, a stabil magnetic field, and an atmosphere on Mars.


What is the planet that is the most similar to earth?

Mars


How are earth and mars similar with their respect to rotation rate?

They are very similar. Earth rotates once in 23hr 56 min while Mars rotates in 24hr 39 min


How was Mars was once similar to Earth?

We now know that Mars once had liquid water on its surface and probably had a much denser atmosphere than it does now.


Does Mars have a earth sign?

Mars is full of frozen water and once was like Earth


How long does mars take to spin once around its axis?

It takes Mars about 24 hours and 39 minutes for the planet to spin once around its axis. This is equal to one day on Mars, and is similar to one day on Earth.


What planet besides earth once had water on it?

mars


Which planet rotated on its axis in about the same amount of time that earth does?

Mars. Mars rotates once in about 1.026 Earth days.Mars.


What planet has a rotation time closest to Earth's?

Mars has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar day). It takes about the same time to spin once on its axis, to give a similar day length, but its not exactly the same.


How many earth day is there in a mars day?

The day lengths are very similar. Earth has a 24 hour day. This is the"solar day". Earth spins once in about 4 minutes less time than the solar day and that's called the sidereal day. Mars spins once in about 24 hours 37 minutes. The solar day on Mars is about 2 minutes longer.


what planet is most similar to earth ?

So far mars. The problem with mars is that it once had a much stronger atmosphere which has mostly vanished into space. In the near future we will learn about other planets in other solar systems that are just like earth.


How long does it take mars to go round the sun once in earth days?

It takes 686.971 earth days for Mars to go once around the sun.