At any moment, about 2,000 thunderstorms are occurring worldwide. Learn how thunderstorms form, what causes lightning and thunder, and how these violent phenomena help balance the planet's energy and electricity.
Stunning drone footage captures Chasm 1, a huge crack on the Brunt Ice Shelf. When it inevitably intersects with the nearby Halloween Crack, an iceberg the size of Houston, Texas will break off into the ocean.
National Geographic partnered with the International Dark-Sky Association to provide families with a true ‘dark sky’ obserbatoryo experience, free from the artificial light prevalent in city and suburban communities.
