supernova remnant
Dead star's scattered shell
A supernova remnant is the expanding shell of gas and debris left behind after a star explodes.
These structures can span dozens of light-years and persist for thousands of years, gradually dispersing heavy elements into surrounding space.
The Crab Nebula is a famous supernova remnant, still visible from the explosion Chinese astronomers recorded in 1054.
Supernova remnant, pincer-shaped
- neutron starUltradense stellar remnant
- pulsarMagnetized rotating neutron emitter
- magnetarNeutron star, intense field
- black holeCollapsed star's remnant
Very thin threads
- shellHard outer covering
- shockwavePropagating pressure disturbance
- ejectaMaterial forcibly discharged
- knotsSecured loops in rope
plasma · nebulosity · blast wave · ionized gas · magnetic fields · turbulence · oxygen-rich
Atomic core formation process
- heavy elementsHigh atomic number substances
- oxygenElement eight, colorless gas
- ironElement twenty-six
- siliconMetalloid in electronics
sulfur · calcium · magnesium · cosmic dust · isotopes
Increase in scope
- shock wavePropagating pressure disturbance
- propagationAct of spreading widely
- decelerationDecrease in speed
- coolingLosing thermal energy
mixing · turbulence · sweeping · compression · heating · ionization
Crab Nebula
Supernova remnant, pincer-shaped
- neutron starUltradense stellar remnant
- pulsarMagnetized rotating neutron emitter
- magnetarNeutron star, intense field
black hole · gamma rays · ejecta · filaments
filaments
Very thin threads
knots · plasma · nebulosity · blast wave · ionized gas · magnetic fields · turbulence · oxygen-rich
nucleosynthesis
Atomic core formation process
- heavy elementsHigh atomic number substances
- oxygenElement eight, colorless gas
- ironElement twenty-six
silicon · sulfur · calcium · magnesium · cosmic dust · isotopes
expansion
Increase in scope
- shock wavePropagating pressure disturbance
- propagationAct of spreading widely
- decelerationDecrease in speed
cooling · mixing · turbulence · sweeping · compression · heating · ionization
supernova remnantsupernova
Exploding massive star
supernova explosion · stellar explosion · core collapse · nova · hypernova
super, remnants, remnant, nova, supernova, supernovae, novae, hypernova