The Hubble Space Telescope has caught the most detailed view of the Crab Nebula in one of the largest images ever assembed by the space-based observatory.
Fermi's LAT discovered a gamma-ray 'superflare' from the Crab Nebula on April 12, 2011. These images show the number of gamma rays with energies greater than 100 million electron volts from a region of the sky centered on the Crab Nebula. Both views eliminate emission form the Crab pulsar by showing the sky in between its pulses. In both images, the bright source below is the Geminga pulsar. At left, the region 20 days before the flare; at right, April 14.
A Hubble visible light image of the Crab Nebula inset against a full-sky gamma ray map showing the location of the nebula (crosshairs).
This image of the Crab Nebula combines visible light (green) and radio waves (red) emitted by the remnants of a cataclysmic supernova explosion in the year 1054, and the X-ray nebula (blue) created inside the optical nebula by a neutron star (the collapsed core of the massive star destroyed in the explosion).
An artist's conception of the pulsar at the center of the Crab Nebula, with a Hubble Space Telescope photo of the nebula in the background. Researchers using the VERITAS telescope array have discovered pulses of high-energy gamma rays coming from this object.