- The Universe has the same temperature
- 95% of the Universe is invisible.
- The distance between the Sun and the Earth is known as “Astronomical Unit”.
- One astronomical unit is roughly equal to 6 million kilometers.
- Uranus was discovered by ‘William Herschel’ in March 1781.
- Neptune was discovered by the German astronomer ‘Johann Galle’.
- Pluto was discovered by an American astronomer ‘Clyde William Tombaugh’ in February 18, 1930.
- “HIPPOCAMP” is the moon of Neptune discovered on 1st July 2013 by ‘Mark Showalter’.
- Wan astronomical unit (au) is about 150 million km that is the average distance of earth from sun.
- The burning particle (weighing less than a gram) is called Meteor or Shooting star.
- Large piece of stone and metal that crashes into the earth is called “Meteorite”.