In our galaxy, a diamond fragment is floating, which is bigger than ours!
The neutron star is made of the substance, the weight of 1 teaspoon of the amount will be 1 billion tons!
If you put satellites in the waterway / water, then it will float on the water! Although it is the second largest planet in the solar system!
Can the world be turned into a black hole? Certainly possible! If you compress the earth into the shape of marble, it will collapse with itself and become a black hole!
There are some types of planets where the glass rains, it is also on the side! The name of the planet HD189733b
The biggest part of the Solar System is the Olympus Mons. It is located on Mars. It is bigger than Earth's Mount Everest! Where the height of Mount Everest is 8.8 kilometers, the height of Olympus Mons is 24 km and it is 624 kilometers wide!
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From @hog110