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SteveO1
Technology and cars
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ASTRONOMY
Supernova Remnants
Crab Nebula
A celestial clash of star death and pulsar winds lights up the Crab Nebula
12 hours ago
1
What is the primary cause of the Crab Nebula's ongoing brightness and energy emission?
The original supernova explosion's residual heat alone
The pulsar wind emitted by the neutron star energizing the nebula's gas
Continuous fusion reactions occurring within the nebula's gas
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FordMotor
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ASTRONOMY
Supernova Remnants
Crab Nebula
A star's explosive death in 1054 created a cosmic crab visible across civilizations
3 days ago
0
What was the significance of linking the Crab Nebula to the supernova observed in 1054 C.E.?
It proved that all nebulae are formed from supernova explosions.
It was the first time an astronomical object was directly connected to a historically recorded supernova, confirming that stars can explode and leave behind nebulae.
It showed that the Crab Nebula was formed by a collision of two stars rather than a supernova.
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Steeeve
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ASTRONOMY
Supernova Remnants
Crab Nebula
A cosmic explosion from 1054 still powers a dazzling nebula visible today
6 days ago
0
What key factor causes the Crab Nebula to remain bright and dynamic centuries after the supernova explosion?
Continuous fusion reactions within the nebula keep it bright.
The pulsar wind emitted by the neutron star energizes the nebula.
The nebula's brightness is due to reflected light from nearby stars.
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Bb115
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ASTRONOMY
Supernova Remnants
Crab Nebula
Ancient skywatchers recorded a stellar explosion that still lights up the cosmos today
8 days ago
0
Why is the Crab Nebula considered a unique astronomical object in the study of supernova remnants?
Because it is the first supernova remnant directly linked to a historically observed supernova explosion.
Because it is the largest nebula visible from Earth with the naked eye.
Because it is a nebula formed from the collision of two galaxies.
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Nellieger
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ASTRONOMY
Supernova Remnants
Crab Nebula
A star's explosive death from 1054 still powers a cosmic light show today
9 days ago
0
What role does the pulsar at the center of the Crab Nebula play in shaping the nebula's appearance and energy output?
It absorbs energy from the nebula, causing the nebula to slowly fade away.
It emits winds of charged particles that energize the nebula, causing it to glow and form complex structures.
It is a black hole that pulls in surrounding gas, creating the nebula's shape.
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Steeeve
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ASTRONOMY
Supernova Remnants
Crab Nebula
A cosmic explosion from 1054 still powers a glowing nebula visible today
10 days ago
0
What is the primary source of energy that keeps the Crab Nebula glowing centuries after the supernova explosion?
Residual heat from the original supernova explosion
The pulsar wind generated by the rapidly spinning neutron star at its center
Continuous fusion reactions occurring within the nebula's gas
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Supernova Remnants
Crab Nebula
A star's explosive death over 900 years ago still powers a cosmic lighthouse today
11 days ago
0
What key factor allows the Crab Nebula to emit radiation across the electromagnetic spectrum long after the supernova explosion?
The presence of a rapidly spinning neutron star (pulsar) powering the nebula
The nebula's gas cloud is still undergoing nuclear fusion
The nebula's brightness is due to reflected light from nearby stars
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Brewster
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ASTRONOMY
Supernova Remnants
Crab Nebula
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A cosmic clash of explosive death and pulsar winds lights up the Crab Nebula
9 Feb 2026
The Crab Nebula is a cosmic battleground where the explosive death of a star clashes with the relentless winds of a pulsar at its core. Far from a serene celestial object, this nebula is the...
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula's pulsar spins 30 times per second, powering its glowing filaments
7 Feb 2026
0
What is the primary source of the Crab Nebula's ongoing brightness?
Residual heat from the original supernova explosion
The pulsar wind emitted by the neutron star at its center
Reflection of sunlight by the nebula's gas and dust
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PeterPan
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Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant ever linked to a historical star explosion recorded by ancient astronomers
7 Feb 2026
0
What was the significance of the Crab Nebula's identification in relation to historical astronomical observations?
It was the first nebula discovered using a space telescope.
It disproved the existence of supernovae as stellar explosions.
It was the first astronomical object linked to a supernova explosion recorded by ancient civilizations.
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula's pulsar spins 30 times per second, powering a cosmic lighthouse of energy
5 Feb 2026
0
What key feature of the Crab Nebula links it directly to the supernova observed in 1054 C.E.?
It is located in the constellation Orion, where the supernova was observed.
It was named after the supernova's crab-like shape seen by ancient astronomers.
It contains a pulsar that is the remnant core of the exploded star.
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SteveO1
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a historic explosion recorded in 1054 C.E.
4 Feb 2026
0
What makes the Crab Nebula particularly significant in the study of supernovae?
It is the largest nebula visible from Earth.
It was the first astronomical object identified that corresponds with a historically observed supernova explosion.
It is the only nebula that contains a black hole at its center.
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Johnbarrow
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a recorded explosion in 1054 C.E.
1 Feb 2026
0
What is the significance of the Crab Nebula in the study of supernovae?
It is the largest known nebula in the Milky Way galaxy.
It is the only nebula that does not emit any radiation.
It was the first astronomical object identified as the remnant of a historically observed supernova explosion.
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Steeeve
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a historic explosion observed in 1054
31 Jan 2026
0
What is the significance of the Crab Nebula in the study of supernovae?
It is the only supernova remnant visible to the naked eye from Earth.
It was the first supernova remnant identified that corresponds to a historically observed supernova explosion.
It was the first nebula discovered using a space telescope.
S
SteveO1
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a recorded explosion in 1054 C.E.
30 Jan 2026
0
What is the significance of the Crab Nebula in the study of supernovae?
It is the brightest star in the constellation Taurus.
It is a nebula formed by the collision of two galaxies.
It was the first astronomical object identified as the remnant of a historically observed supernova explosion.
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Bonbo
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Crab Nebula
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The Crab Nebula is the first supernova remnant linked to a historic stellar explosion observed in 1054 C.E.
30 Jan 2026
The Crab Nebula is the first supernova remnant linked to a historic stellar explosion observed in 1054 C.E. The Crab Nebula is a famous supernova remnant and pulsar wind nebula located in the constellation Taurus....
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Nellieger
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a recorded explosion in 1054 C.E.
30 Jan 2026
0
What is the significance of the Crab Nebula in the study of supernovae?
It was the first astronomical object identified that corresponds with a historically observed supernova explosion.
It is the brightest star in the constellation Taurus.
It is a newly discovered nebula with no historical observations.
1
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ASTRONOMY
Supernova Remnants
Crab Nebula
The Crab Nebula is the first supernova remnant linked to a recorded explosion in 1054 C.E.
29 Jan 2026
0
What key feature at the center of the Crab Nebula powers its emission and distinguishes it as a pulsar wind nebula?
A highly magnetized, rotating neutron star known as a pulsar
A black hole formed from the supernova explosion
A dense cloud of cold gas and dust blocking light
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