PIX4565989: Amateur Astronomers - Amateur Astronomers - Amateur astronomers prepare their evening of observation at the ratings of professional astronomers. Calar Alto Observatory - Spain. Amateur astronomers preparing their night sky observation beside the professionals at Calar Alto Observatory, Spain / Bridgeman Images
PIX4565849: Galaxies cluster Abell 2744 - This image of the galaxy cluster Abell 2744 located in the constellation of the Sculptor, combines images obtained in visible form by the Hubble Space Telescope (HST) and the Very Large Telescope (VLT). This image of galaxy cluster Abell 2744 combines data from the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys, with an image taken with the European Southern Observatory's Very Large Telescope (VLT). Hubble provides the central, most detailed part of the image, while the VLT, which has a wider field of view, provides the outer parts of the image. This object has been nicknamed Pandora's Cluster because of the many different and strange phenomena that were unleashed by a huge collision that occurred over a period of 350 million years. A simultaneous pile - up between at least four separate clusters has produced strange effects that have never been seen together before / Bridgeman Images
PIX4566275: Amateur astronomer in the mountains - Amateur astronomer - Amateur astronomer Sebastian Voltmer prepares his equipment for an evening of observation in the mountains. On the right, the Matterhorn. Amateur astronomer Sebastian Voltmer before an observing night in mountain. At right is Matterhorn / Bridgeman Images