Astronomy

The Earth is the third planet from the Sun in the Solar - system. The Earth is the only planet in the Solar - system known to harbor life.   LIFE ON EARTH The Earth's temperature, atmosphere and many other factors are just right to keep us alive. The Earth is just for enough away from the Sun, that it is at the right temperature to have liquid water on it's surface. In fact, most of Earth's surface is covered in  water,  which is very  important  for  living things. SIZE OF THE EARTH The Earth is the biggest of all the terrestrial  planets. but the Earth is much smaller than the gas planets, like Saturn and Jupiter, that are in the outer Solar - system. If you cut a piece of string long enough to wrap it around the Earth, it had be 24,901 miles long. That's longer than 365,000 Football fields. THE EARTH'S ORBIT AND ROTATES The Earth is still 93 Million Miles away from the sun. since it's so far away. it takes t...

The SOLAR SYSTEM is full of planets, moons, asteroids, comets, minor planets, and many other exciting objects. the solar system is gravitational bound of the SUN and the objects that orbit it. THE SUN is the star at the center of the Solar - system. Planets of solar System:-  There are 8 planets our Solar - system, which is divided in two categories- TERRESTRIALS    :- There are four terrestrials Mercury, Venus, Earth and mars. Planets that are similar to earth, with bodies largely composed of rock.At 0.055 Earth masses , Mercury is the smallest terrestrial planet( and smallest planet) in the Solar system. Earth is the largest Terrestrial planet. These have many moons G IANT PLANETS   :- Four Giant Planets ( Large low density )  -  Jupiter, Saturn, Uranus and Neptun e.  Massive planets significantly more massive than the terrestrials. * GAS GIANTS:- Jupiter and Saturn , are giant planets primarily composed of hydrogen and hel...