An astronomer is a scientist in the field of astronomy who focuses their studies on a particular question or field outside the scope of Earth.
Saturn would float if you put it on water.
The largest construction found in the universe is the Sloan Great Wall, a super cluster of galaxies 1.37 billion light-years wide.
Rogue planets are not bound by any star, brown dwarf or another planet which lets them free-float around the galaxy.
Only 5% of the universe is made up of normal matter, 25% is dark matter and 70% is dark energy.
Neutron stars are so heavy that a teaspoon of them would be equal to the weight of the entire Earth’s population.
Only 55% of all America knows that the Sun is a star.
Mar’s surface is covered with rust.
You should know that the first astronomer was Galileo Galilei in 1564-
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