An image from the Hubble Space Telescope shows an unusual interaction of four dwarfgalaxies, so close together that all of them would fit within the Milky Way.
An image from the Hubble Space Telescope shared this week by NASA shows an unusual interaction of four dwarf galaxies. There are two small galaxies which are so close together that they look like one object, called NGC 1741, located at the top of the image. Then there is another cigar-shaped galaxy close by to the right, and a fourth galaxy in the bottom left which is connected to the other three by a stream of young stars.
This image is a revised version of an image originally released in 2010, which has been processed to bring out the star-forming regions in the group. As gravitational forces from the mass of the galaxies interact, this spurs the formation of stars, which glow blue when they are young.
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