Weekly Science Update

Radio Galaxies and Double Black Holes
Centaurus A
A false-color radio image of the relatively nearby radio galaxy Centaurus A, showing its giant lobes of radio emission in violet; the main galaxy and its nucleus are at the center. The inset shows a multiwavelength (including optical) image of the central galaxy. New infrared observations of distant radio galaxies have found some with multiple black holes at their nuclei.
Credit: CSIRO/ATNF; ATCA;ASTRON; Parkes;MPIfR; ESO/WFI/AAO (UKST); MPIfR/ESO/APEX; NASA/CXC/CfA
Low Resolution Image (jpg)
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