An older image of the largest known spiral galaxy ever detected shows the importance of using data from multiple space telescopes.
Three telescopes, two of which belong to NASA, have brought their data together to create a spectacular image. The image, which wasback in January 2013, is a composite of a giant barred spiral galaxy known as NGC 6872. This beautiful and shining galaxy is believed to be the largest known spiral galaxy that humanity has ever uncovered.
NASA says that the galaxy’s unusual size and appearance most likely stem from interactions with IC 4970, a much smaller disk galaxy that is around one-fifth the mass of NGC 6872. The largest known spiral galaxy and its neighbor are located a staggering 212 million light-years from Earth, somewhere within the southern constellation of Pavo.
What’s even more intriguing about this galactic couple, though, is that the interactions between them may actually spawn a new, smaller galaxy. Normally when two galaxies come close together like this they merge, something that we’ve captured in action using the. But the largest known spiral galaxy and its companion seem to have other plans in the works.
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