Pixel evidence
What the image supports
The displayed optical frame resolves branching filaments around a diffuse inner glow. Assigned colors distinguish emission recorded through optical filters; they do not identify every element from color alone.
Object Atlas / M1
Crab Nebula
This page shows a Hubble optical mosaic of supernova debris. X-ray and radio observations reveal other components, but they are not encoded in the displayed image.
Image credit: NASA, ESA, J. Hester and A. Loll (Arizona State University). The linked ESA/Hubble record documents the optical mosaic.
Other wavelengths
What is not in this frame
X-ray images are used to study the high-energy region near the pulsar, while radio observations trace synchrotron emission over the remnant. Those conclusions require separate registered datasets.
Evidence boundary
History and expansion
Connecting the remnant to the event recorded in 1054 and measuring expansion require historical records and observations across time. A single mosaic cannot establish either result by itself.
Atlas task
Test your reading
Describe one filament and one diffuse region visible here. Then name the separate wavelength dataset needed to examine the pulsar's highest-energy environment.
Signal interpretation console · atlas
Crab Nebula / observation pipeline
Photons
Identify wavelength, exposure, field of view and observing date before reading the image.
Detector
Separate object signal from point-spread function, noise, saturation and selection.
Calibration
Track background removal, alignment, scaling and color mapping as part of the measurement.
Physical claim
Connect “Historical Significance” to “The Pulsar” through an explicit model.
PRIMARY READOUT
The remnant of a supernova explosion observed in 1054 AD, now expanding at 1,500 km/s with a pulsar at its center emitting radiation across the electromagnetic spectrum.
MODEL WARNING
Compare emission, absorption and scattered light across wavelengths; apparent color and sharp edges depend on filters, ionization and foreground dust. Projection, distance, extinction or adopted parameters may offer another explanation.
CROSS-CHECK
Query ESA/Hubble: Crab Nebula mosaic and seek an independent wavelength, spectrum, motion or catalogue measurement.