Astronomers have discovered a new type of 'freak star' covered in helium-burning ashes, which they say were likely formed by a rare stellar merger event. When hunting for 'hot stars' with the Large Binocular Telescope in Arizona, the German team of experts came across two stars with the same unusual properties. Called PG1654+322 and PG1528+025, the stars are within our galaxy but they're somewhere between 10,000 and 25,000 light years ...