NASA's James Webb Space Telescope has spotted "Firefly Sparkle," a tiny, young galaxy from just 600 million years after the Big Bang. This lightweight galaxy, brimming with sparkling star clusters, offers a glimpse into the Milky Way's infancy.NASA's James Webb Space Telescope has spotted "Firefly Sparkle," a tiny, young galaxy from just 600 million years after the Big Bang. This lightweight galaxy, brimming with sparkling star clusters, offers a glimpse into the Milky Way's infancy.