The HubbleSpace Telescope has spied one of the smallest objects ever detected around anormal star. The object further blurs the line between stars and planets and raises new questions abouthow planets ...

Scientists have discovered a mysterious object at the center of our Milky Way that does not fit the criteria of anything else in the galaxy. The team found the object emits microwaves, which suggests ...

While many people can point to a picture of Jupiter or Saturn and call it a "planet," the definition of this word is much more subtle and has changed over time. Many astronomers decided on a new ...

The object further blurs the line between stars and planets and raises new questions about how planets should be defined outside our solar system. Announcement of the discovery comes two weeks after ...