Strangely, âposhliâ (which means âletâs goâ or âletâs head outâ in Russian) is actually the past tense of the verb meaning âTo head off on foot.â In other words, âposhliâ literally means, âWe (or they) headed off on foot.â How can a word which is in the past tense indicate the desire to head off somewhere now?
The Hill sphere, or gravitational sphere of influence, of Earth is about 1.5 Gm or 1,500,000 km in radius. This is the maximum distance at which the Earth's gravitational influence is stronger than the more distant Sun and planets.
How Large is the Earth Compared to the Universe? or, Using the Earth to build a Road to Pluto. Let's start with how big the Earth is. Well, the average diameter of the Earth is 7926 miles, which gives it a radius of 3963 miles and a volume of 261 billion cubic miles of Earth earth (see arithmetic in the last paragraph).