NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

Over the next few years, Gliese is going to become a household name ... those photos are giving everyone a taste of the excitement of Voyagers 1 and 2 sending back the first-ever close-ups ...

Scientists have discovered a new planet that may be able to support human life, according to a new study. The study, published in Monthly Notices of the Royal Astronomical Society on Thursday ...

And the object they studied isn’t just any ordinary brown dwarf. Gliese 229B was the first known brown dwarf, discovered in 1995. These objects are much larger than gas giant planets.