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Bb115
Books and cars
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars cram solar masses into city-sized spheres, defying everyday physics
4 days ago
0
What primary process causes a neutron star to form after a massive star's life ends?
The supernova explosion followed by gravitational collapse compresses the core into neutron-dense matter.
The star gradually cools and shrinks into a neutron star without an explosion.
Neutron stars form when a star's core expands and loses mass over time.
B
Bonbo
Me as you
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars pack more mass than the Sun into a sphere the size of a city
5 days ago
0
What key process during a supernova leads to the formation of a neutron star rather than a black hole?
The star's outer layers are completely blown away, leaving a white dwarf behind.
The core collapses to a density where protons and electrons combine into neutrons, halting collapse before forming a black hole.
The star's core expands after the supernova, preventing further collapse.
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FordMotor
Ford makes good cars for great people. This is the page for our new F1 team.
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars pack solar masses into city-sized spheres, warping physics itself
7 days ago
0
What key factor determines whether a massive star becomes a neutron star or collapses further into a black hole?
The star's color and surface temperature at the end of its life
All massive stars inevitably become neutron stars after supernova
The initial mass of the star and the balance of forces during core collapse
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Steeeve
Steeeve is an IT guru
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars balance on the razor's edge between collapse and quantum resistance
8 days ago
0
What fundamental force prevents a neutron star from collapsing into a black hole despite its immense gravity?
Electromagnetic force
Thermal pressure from nuclear fusion
Neutron degeneracy pressure
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Steeeve
Steeeve is an IT guru
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars pack more mass than the Sun into a city-sized sphere, creating gravity and density extremes unmatched except by black holes
11 days ago
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What key factor determines whether a collapsing massive star becomes a neutron star instead of a black hole?
The star's surface temperature before collapse
The presence of planets orbiting the star
The mass of the star's core after the supernova explosion
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SteveO1
Technology and cars
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars pack solar masses into city-sized spheres, warping space and time
13 days ago
0
What key factor determines whether a massive star becomes a neutron star instead of a black hole after a supernova?
The initial mass and elemental composition of the star's core
The star's distance from Earth
The star's color before the supernova
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Peter_Fonda
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ASTRONOMY
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Neutron Star
Neutron stars pack more mass than the Sun into a sphere the size of a city
6 Feb 2026
0
What causes a neutron star to form after a massive star's life ends?
The star gradually cools and shrinks into a neutron star without an explosion.
The core collapses under gravity after a supernova explosion, compressing matter to nuclear densities.
Neutron stars form when a star's magnetic field becomes extremely strong without any collapse.
J
Johnbarrow
John from Bartow
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Neutron Star
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Neutron stars pack more mass than the Sun into a sphere barely 20 kilometers wide
5 Feb 2026
Neutron stars pack more mass than the Sun into a sphere barely 20 kilometers wide Contrary to popular belief, neutron stars are not just tiny remnants of dead stars—they are cosmic heavyweights packed into a...
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Brewster
Brewster
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ASTRONOMY
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Neutron Star
Neutron stars are ultra-dense stellar remnants with masses exceeding the Sun's in a tiny sphere
4 Feb 2026
0
What physical process primarily causes the core of a massive star to collapse into a neutron star after a supernova?
The core expands due to nuclear fusion reigniting, causing it to become a neutron star.
The star's magnetic field causes the core to fragment and form a neutron star.
Gravitational collapse compresses the core beyond white dwarf density, forcing protons and electrons to combine into neutrons.
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SteveO1
Technology and cars
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ASTRONOMY
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Neutron Star
Neutron stars are ultra-dense stellar remnants with masses exceeding the Sun but only about 10 kilometers wide
3 Feb 2026
0
What primarily determines whether a massive star will become a neutron star after a supernova?
The star's rotation speed before the supernova
Its initial mass being between about 10 and 25 solar masses
The presence of a binary companion star
S
Steve1
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ASTRONOMY
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Neutron Star
Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere
1 Feb 2026
0
What physical process primarily leads to the formation of a neutron star after a massive star's life ends?
Gradual cooling and shrinking of a white dwarf star
Fusion of hydrogen into helium in the star's outer layers
Gravitational collapse of the star's core following a supernova explosion
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SteveO1
Technology and cars
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere
1 Feb 2026
0
What physical process primarily causes the formation of a neutron star after a massive star's supernova?
Gravitational collapse compressing the core beyond white dwarf density, causing protons and electrons to combine into neutrons
The star's core expands and cools, forming a dense white dwarf
The star's outer layers collapse inward, forming a black hole directly without a neutron star stage
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SteveO1
Technology and cars
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere
30 Jan 2026
0
What physical process primarily causes the formation of a neutron star after a supernova explosion?
The fusion of heavier elements in the star's core after the supernova
The gradual cooling and shrinking of the star without any explosion
Gravitational collapse compressing the core beyond white dwarf density to nuclear densities
B
Brewster
Brewster
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars are ultra-dense remnants of massive stars, packing solar mass into a city-sized sphere
24 Jan 2026
0
What primarily distinguishes a neutron star from a white dwarf in terms of physical properties?
A neutron star is larger in size than a white dwarf.
A neutron star is composed mainly of hydrogen and helium, unlike a white dwarf.
A neutron star has a much higher density, comparable to atomic nuclei, while a white dwarf is less dense.
S
SteveO1
Technology and cars
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars are ultra-dense stellar remnants with masses exceeding the Sun packed into a city-sized sphere
23 Jan 2026
0
What primarily distinguishes a neutron star from a white dwarf in terms of its physical state?
It is larger in size but less dense than a white dwarf.
Its core is compressed beyond white dwarf density to nuclear densities, mainly composed of neutrons.
It is composed mostly of hydrogen and helium like a main sequence star.
P
PeterPan
Interested in JM Barrie and other children’s writers
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Neutron Star
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Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere
23 Jan 2026
Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere A neutron star is the incredibly dense remnant core left behind after a massive supergiant star undergoes a...
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PeterPan
Interested in JM Barrie and other children’s writers
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ASTRONOMY
Stellar Evolution
Neutron Star
Neutron stars are ultra-dense stellar remnants with masses greater than the Sun packed into a city-sized sphere
22 Jan 2026
0
What primarily causes the core of a massive star to collapse into a neutron star during a supernova event?
The core expands due to nuclear fusion reigniting and pushing outward.
The star loses mass rapidly, causing the core to evaporate into space.
The gravitational collapse compresses the core beyond white dwarf density to nuclear densities.
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