Source: ESA/Hubble Science Release heic1415
Centaurus A halo.
Image credits: ESA/Hubble, NASA, Digitized Sky Survey, MPG/ESO.
Astronomers using the NASA/ESA Hubble Space Telescope have probed the extreme outskirts of the stunning elliptical galaxy Centaurus A. The galaxy’s halo of stars has been found to extend much further from the galaxy’s centre than expected and the stars within this halo seem to be surprisingly rich in heavy elements. This is the most remote portion of an elliptical galaxy ever to have been explored.(learn more)