Contrary to online rumors, Earth still only has one true moon, but astronomers have discovered a so-called 'quasi-moon.' Here ...

Earth still only has one true natural satellite — our 2,159-mile-wide moon oribiting about 239,000 miles away. However, ...

NASA just confirmed that a quasi-moon has been orbiting since 1960. Here is everything to know about what is being called a "second moon." ...

The National Museum of Natural History in Paris takes us to the most extreme corners of the planet with the exhibition ...

This striking satellite photo shows a quartet of near-identical glaciers perched between mountainous peaks on a barren island in the Canadian Arctic. The elongated ice masses, which are threatened by ...

Documentary Series. From remote islands and towering mountains to bustling cities and arid deserts, Planet Earth II captures the drama and beauty of the natural world with breathtaking cinematography ...