Q
What are neutron stars?
A
Expert Answer
Neutron stars form when massive stars collapse—electrons and protons merge into neutrons, creating a city-sized sphere (~20km diameter) with solar-mass density. A teaspoon of neutron star material weighs billions of tons. Some spin rapidly (pulsars), emitting beams of radiation like lighthouses.
Key Insight
Neutron stars form when massive stars collapse—electrons and protons merge into neutrons, creating a city-sized sphere (~20km diameter) with solar-mass density.
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