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.
Earth's Size. As the largest of the terrestrial planets, Earth has an estimated mass of 5.9736 Ã 1024 kg. Its volume is also the largest of these planets at 108.321 Ã 1010km3. In addition, Earth is the densest of the terrestrial planets as it is made up of a crust, mantle and core.