The sixth planet reaches its annual opposition this weekend when Earth gets between it and the sun. It make Saturn the ...

On Sept. 18, 1977, NASA's Voyager 1 spacecraft took a photo of Earth and the moon. It was the first time both the Earth and ...

TRAPPIST-1, a planetary system 40 light years from Earth, could host a planet with an atmosphere and liquid water, but astronomers can’t be certain just yet.

Saturn will appear at its brightest when it reaches opposition on the night of Sept. 21. The planet is famous for its dazzling ring system and is the second largest planet in our solar system.

The best time to view it is closer to midnight, because it will be high in the sky. Saturn can be seen with the unaided eye and looks like a bright star. With binoculars, it will look like a solid ...