Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

Thanks to the sheer mass of Jupiter and fellow gas giant Saturn, the Solar System barycenter is rarely in the center of the ...

Astronomers have reported observations of a rare star system consisting of one star orbiting a system of three more tightly bound stars. This quadruple star system is described in a new study, ...

"Astronomers have been searching for exoplanets that are likely precursors to hot Jupiters for more than two decades, so I was very surprised — and excited — to find one." When you purchase through ...