After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury ... spacecraft in 1977 on a "Grand Tour" of the outer Solar System. Voyager 1 flew past Jupiter in ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

The stars may not be aligning on Friday night, but seven planets in our solar system just may be. For weeks, outer space enthusiasts have been gearing up for a planetary alignment, or "planetary ...