Hera Mission
Rather than being tiny grains or pixels of TV noise, every single point of light in this image is actually a distant galaxy as observed by ESA's Herschel Space Observatory Each of these minute marks represents the 'heat' emanating from dust The four bright points circling them, and the fainter one in the very center, are actually five separate images of a single quasar (known as 2M), an extremely luminous but distant object The reason behind this "seeing quintuple" effect is a phenomenon known as gravitational lensing Gravitational lensing occurs when a celestial
