A mysterious star from outside the Milky Way has somehow ended up near our galaxy's supermassive black hole

• A star positioned near the center of the Milky Way seems to have come from outside of our galaxy. 
• The interloper is thought to have traveled from a galaxy that has since disappeared. 
• The star, called S0-6, could have traveled 50,000 light years to reach the Milky Way's black hole. 

Scientists have spotted a star near the center of the Milky Way that shouldn't be there.