Strange Streaks Found on Mercury, NASA Uncovers 400 Signs the Planet Isn’t Not Dead Yet

400 strange streaks may be signs of something still moving deep below the surface. For decades, Mercury has been seen as a static, heavily cratered planet, a relic of early Solar System history. Signs of Gas Escape Written Across Mercury’s SurfaceAround 400 bright streaks, known as lineae, have been mapped on Mercury’s surface. The technique allowed for a more systematic mapping of Mercury’s surface than had been possible during the mission itself. “Our findings paint a completely different, dynamic picture of the supposedly dead, dry and boring planet Mercury,” said Bickel.