Interstellar Comet 3I ATLAS Glows Green During Lunar Eclipse: In a breathtaking cosmic coincidence, the interstellar comet 3I ATLAS was captured glowing an eerie green during the peak of a lunar eclipse on September 15, 2025. This once-in-a-lifetime astronomical image, our Space Photo of the Day, shows the visitor from another star system streaking past a darkened, red-hued Moon.
