Every year, the Earth travels around the Sun along almost the exact same path.It may seem obvious, but this is actually a ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

Learn how the exoplanet GJ 3090 b travels around its host star in a backward orbit, offering new insight into the evolution of planetary systems. About 73 light-years from Earth lies an exoplanet that ...

Artist’s concept of a planet far from its home star. A new study said that wide-orbit planets could be a natural result of chaotic early solar system formation. Such planets would lend support to the ...

A stock illustration of a theoretical distant planet. In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and planetary masses silently ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...