At first glance, a galaxy known as NGC 2276 looks like a typical face-on spiral, albeit a bit lopsided. But as this spectacular photo from the Hubble Space Telescope shows, the gravity of a nearby galaxy is tugging on the right side of the spiral, pulling one arm away, while interactions with hot inter-galactic gas fuel rampant starburst on the left side as indicated by the bluish-pink regions. One of those regions is believed to be home for a 50,000-solar-mass black hole. NGC 2276’s appearance has earned it a place in the aptly named Atlas of Peculiar Galaxies first published by Halton Arp in 1966.
This Hubble image is of the peculiar galaxy NGC 1487, lying about 30 million light-years away. We are witnessing the possible merger of several dwarf galaxies into a new single galaxy. Its appearance is dominated by large areas of bright blue stars, illuminating the patches of gas that gave them life. This burst of star formation may well have been triggered by the merger.
This NASA/ESA Hubble Space Telescope image shows the spiral galaxy NGC 4845, located over 65 million light-years away in the constellation of Virgo. In 2013 researchers noticed a violent flare from the black hole at the centre of NGC 4845 as it tore up and fed off an object many times more massive than Jupiter that strayed too close and was devoured.