Please clarify the question. At the very least, you should clarify from where you want to "get to planet Earth", and at what speed. If you jump down from one meter altitude, it takes a fraction of a second. In general, for problems involving speed you can use the formula: distance = speed x time
You do not say what will harm the earth. The earth is a dynamic planet, if it did not have the processes which cause earthquakes and volcanoes it would be a dead planet. While earth stays dynamic, constantly active, it is the perfect place for us.
Planet Earth has existed about as long as the Solar System - something like 4.6 billion years. For the future, it is harder to know how long it will last. In a few hundred million years, it is expected to get too hot for life to exist on planet Earth, but the planet will continue existing. In 4 or 5 billion years, Earth will ultimately be swallowed up by the expanding Sun.
Roughly 4 million years
We are called Earth. "Blue Planet" is a nickname for Earth, since our planet comprises primarily of water.
If the planet was exactly in between Mars and Jupiter, it would take 3645.029 days.
It depends which planet you mean.
365.25 days
13 1/2 years
224.7 Earth Days
10000 miles away from earth
5 thousand years
Mercury is 58.646 earth days.
365 days
365.25 days (approx.)
About an hour.
approximately 8.33seconds
It takes 164.79 earth years.