1. Study of universe is known as- Cosmology.
2. Our galaxy is MILKY WAY GALAXY.3. Milky way galaxy is formed 5billion years after the Big Bang.
4. Latest known galaxy is Dwarf Galaxy
5. Andromeda is our nearest galaxy.
6. Nearest star is PROXIMA CENTAURI.
7. A ninth planet has been discovered by NASA named CARLA.
8. Mercury is closest planet to sun.
9. Venus is nearest to earth and the brightest planet.
10. Venus is also known as EVENING and MORNING STAR.
11. Earth is also called BLUE PLANET.
12. The earth is neither too hot nor too cold. It has Goldilocks Zone.
13. Goldilocks Zone is the zone of solar system where all conditions are available for life to sustain.
14. Mars is also called RED PLANET.
15. Jupiter is largest of the Solar System.
16. Saturn is the second largest planet in the solar system.
17.Titan is the satellite of Saturn, and also largest satellite.
18. Uranus appears greenish in color because of Methane gas present in its atmosphere.
19. Uranus rotates from east to west on its axis , while other rotates west to east.
20. Neptune is very similar to Uranus.
21. Pluto is not a planet now.
22. IAU(International Astronomical Unit), the world's top institution on space science research, declared on 24 aug,
2006, the Pluto no longer remain a planet, and its asteroid number is 134340.
23. Meteors and Meteorites are also called Shooting Stars.
24. Earth takes 365days, 5 hours , 48 mins and 45.51 secs for a complete a revolution.
25. The longest day in north hemisphere is 21 June while shortest day is on 22 December, vice-verse in south hemisphere.
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