On August 10, six planets — Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune — will line up in an arc in the night sky.

The Sun is so giant that approximately one million Earths could fit into it. There is no sound in space because it is a ...

Those looking for signs of the transition can watch Venus move from the evening to morning sky Sunday. READ MORE: Study suggests Saturn’s rings could be 4.5 billion years old just like the planet ...