Science
Earth's core may have been leaking hydrogen for billions of years
Recent scientific analysis suggests that the Earth's metallic core has been releasing hydrogen into the mantle for eons. This process likely began shortly after the planet's formation, when a molten rock ocean surrounded the core before cooling into the mantle. As volcanic activity brings material from deep within the Earth to the surface, researchers have identified traces of hydrogen. This discovery provides new insights into the chemical composition of the planet's interior and how it has evolved over billions of years.