One of Hall's objectives was to use the telescope to search for moons orbiting Mars, but he knew that such a discovery would be difficult. He was about to give up, but his wife, Angeline Stickney ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

Venus, Saturn, Jupiter and Mars are all visible after sunset, but social media claims about it being a rare "planetary ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

On Jan. 4, Saturn briefly hid behind the crescent moon, escaping the view of skywatchers in Europe, Africa, western Russia ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

The Moon meets the Red Planet’s rival in Scorpius, skims close to Saturn, and reaches New phase in the sky this week.

Fresh from the excitement of this week’s Wolf Moon, there’s another treat in store for sky-watchers this week, with Mars ...