The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a "failed star"—which in turn ...
It circles a 'failed star' like a moon would. But scientists aren't quite sure what to call it.
NASA's discovery of more than 6,000 confirmed exoplanets has transformed scientists' understanding of the universe, but one major prize has remained elusive: the first confirmed exomoon. Now, ...
Newly discovered object is so strange that we don’t know what to call it, astronomers say - Object might be the first moon ...