Meteors delivered optimum salt to start life on Earth: Study
A UK-based study has found halogens like Chlorine, Bromine, and Iodine, which form naturally occurring salts, brought to Earth by meteorites from outside the Solar System served as key life-forming ingredients. The study found halogen levels to be consistent across interstellar meteorites maintaining "Earth's recipe" for life. The halogens are thought to be distributed across the planet by water.