Astronomers have found thousands of exoplanets — worlds beyond our solar system. Most of them are in single-star systems, ...

For the first time, scientists have found strong evidence of a "polar planet"—a planet whose orbit is tilted at 90 degrees compared to the orbit of its two host stars. The discovery, made using the ...

In 2018, astronomers discovered a brown dwarf binary system. Brown dwarfs are stellar objects that never had enough mass to ...