See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. New research may shine a light on part of outer space's great mysteries ...

A new planetarium show at the American Museum of Natural History depicts a spiral in the Oort Cloud, a region far beyond Pluto that’s full of icy comets. (American Museum of Natural History) NEW YORK ...

A team of astronomers has identified a four-planet system orbiting the red dwarf star LHS 1903 that defies conventional expectations about how planets arrange themselves around their host stars. The ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." When you purchase through links on our site, we may earn an affiliate ...

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall, ...