More than 6,000 exoplanets have now been confirmed beyond our Solar System, but only a handful truly redefine what astronomers thought was possible. Over the past few years, observatories such as the ...

Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" derives from the term "extrasolar planet," which hints at its existence beyond ...

Brown dwarfs occupy the mass regime between planets and stars. In systems containing both a star and a substellar companion (be it a brown dwarf or an exoplanet), a third object orbiting the companion ...

Two investigations underscore the role of orbital instabilities in accounting for the diversity of planetary systems. As viewed from Earth (blue curves), the microlensing of a distant star by an ...

It's 2234, you're on your annual class field trip touring exoplanets, and your teacher informs everyone they can pick one more exoplanetary system to explore before heading back to Earth. You and your ...

Planets around massive B-type stars at intermediate orbital distances remain largely unexplored. Here, the authors show that four evolved planet-hosting stars, HD 2952, HD 120084, HIP 65891, and HIP ...

Astronomers have discovered a curious new exoplanet that challenges assumptions about hot Jupiters, some of the most extreme planets in the universe.