Early risers will get a rare opportunity to see something extraordinary in the early hours of July 18 — the dark shadow of Saturn's largest moon, Titan, sweeping across the planet's cloud tops.

Beyond Neptune, a smaller ‘ninth’ planet has been identified in the Kuiper Belt. If the object is confirmed as an actual planet, it would make it the ninth in our solar system ...

A star once thought empty was actually hiding a giant planet. New imaging and Gaia data exposed the surprising discovery of a ...

Answers to those questions could come from a telescope with the world’s largest digital camera, a project with initial ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed “Ammonite,” researchers say it could provide more evidence to the ...