The Vera C Rubin observatory, home to the world's most powerful digital camera, promises to transform our understanding of ...

NASA's Advanced Composite Solar Sail System (ACS3) will be visible from the ground. Find out when you can see it on the NASA ...

With a spectacular array of galaxies and nebulas, the ambitious telescope begins its 10-year survey of the cosmos.

The Vera C. Rubin Observatory has just released some of its first images. Its powerful new telescope will be able to quickly ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event ...

Interestingly, they'll always appear along the same arc in the night sky. That path is called the ecliptic, and it exists because all planets in our solar system orbit around the sun on roughly ...

The nights surrounding June 7 will see Jupiter and Mercury crowd together close to the horizon in the northwestern sky.

These planetary hangouts happen when several planets appear to line up in the night sky at once. They're not in a straight line, but are close together on one side of the sun. Recommended Videos ...

Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar system will be visible ...

When to look: Mid and late January, but best visibility may be the night of Jan. 17 and 18. Timing: Dusk after sunset, but before 9 p.m. local time There are eight planets in our solar system and ...