A stunning image of the Milky Way took 12 years to photograph â It shows the ghost of a supernova Apr 11, 2021, 12:31 PM
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It shows 20 million stars in the galaxy and also features the remains of three supernovas.
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For the last 12 years, photographer J-P Metsavainio has undertaken that challenge.
Metsavainio started taking snapshots of the Milky Way from his observatory in Oulu, Finland in 2009. Earlier this month, he released a mosaic image of the galaxy that stretches from Taurus - a constellation about 2,200 light-years from Earth - to Cygnus, another constellation around 6,100 light-years away.
The mosaic captures about 20 million stars in total. (The entire Milky Way has hundreds of billions of stars.)