A city-sized star weighs more than our sun
Neutron stars pack over a sun's mass into a city-sized sphere, creating objects so dense a teaspoon weighs billions of tons, pushing the limits of physics.
Imagine squeezing the entire mass of our Sun into a sphere just 10 to 20 kilometers wide – that's a neutron star! These incredibly dense objects form from the collapsed cores of massive stars after supernova explosions. A single teaspoon of neutron star material would weigh billions of tons on Earth, making them far denser than anything else we know.
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