Mercury 101 | National Geographic

– [Narrator] The planet Mercury is named after the messenger of the Roman gods, because even the ancients could see how swift and fleeting it is in the sky. But it wasn’t until recently that scientists began unraveling Mercury’s many mysteries. Mercury is the smallest planet in our solar system. It’s diameter currently measures just […]

Sun 101 | National Geographic

While billions of stars are scattered throughout the universe the one at the center of our solar system Plays a special role for us here on earth our Sun formed about 4.5 billion years ago in the Milky Way galaxy’s Orion’s fur It was born when a cloud of dust and gas known as a […]