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    The Universe  
The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space, the smallest subatomic particles, and all matter and energy. The majority of matter and energy is most likely...
 
    Earth, 3rd Planet from the Sun  
Earth is the third planet from the Sun. It is the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world or the Blue Planet....
 
    Asia  
Asia is the largest and most populous of the Earth's continents. It is traditionally defined as part of the landmass of Africa-Eurasia lying east of the Suez Canal, east of the Ural Mountains, and southeast of the Caucasus Mountains and the Caspian a...
 
    Oceania  
Oceania is a geographical region consisting of numerous countries and territories mostly islands in the Pacific Ocean. The exact scope of Oceania is controversial, with varying interpretations including East Timor, Australia, New Zealand, or none...
 
    Europe  
Europe is conventionally considered one of the seven continents which, in this case, is more a cultural and political distinction than a physiogeographic one. Physically and geologically, Europe is a subcontinent or large peninsula, forming the weste...
 
    Africa  
Africa is the world's second-largest and second most populous continent, after Asia. At about 30 million km² including its adjacent islands, it covers 5.9% of the Earth's total surface area, and 20.3% of the total land area. With over 840 million peo...
 
    Antarctica  
Speculation over the existence of a "southern land" was not confirmed until the early 1820s when British and American commercial operators and British and Russian national expeditions began exploring the Antarctic Peninsula region and other areas sou...
 
    North America  
North America is a continent in the Northern Hemisphere and almost fully in the Western Hemisphere, bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west by the North Pa...
 
    South America  
South America is a continent situated in the Western Hemisphere between the Pacific and Atlantic Oceans. Most of it is in the Southern Hemisphere. Commonly referred to as part of the Americas, like North America, South America is named after Amerigo...
 
       
 
         
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