UAE's Burj Khalifa is currently the tallest structure in the world and NASA astronaut Donald Roy Pettit recently shared a breathtaking image of the building from space, giving people a chance to see ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.