Are we alone in the universe? While no one can say for sure, space scientists know where to start looking—exoplanets. An exoplanet is a planet beyond the cradle of Earth’s eight-membered solar system.

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

Our own planet represents a tiny fraction of the peculiar phenomena that can be found lurking throughout the cosmos, and ...

"A planet orbiting not just a binary, but a binary brown dwarf, as well as being on a polar orbit, is rather incredible and exciting." Scientists have perhaps discovered the weirdest planetary system ...

A mysterious "rogue" planet has been observed gobbling six billion tonnes of gas and dust a second -- an unprecedented rate ...

It's been almost a year ago since we made our first discovery of an exoplanet orbiting two suns, prompting everyone to compare it to the planet Tattooine in the "Star Wars" universe. A handful of ...

On October 6 1995, at a scientific meeting in Florence, Italy, two Swiss astronomers made an announcement that would transform our understanding of the universe beyond our solar system. Michel Mayor ...

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your ...

(Handout/EUROPEAN SOUTHERN OBSERVATORY/AFP) A mysterious "rogue" planet has been observed gobbling six billion tonnes of gas and dust a second -- an unprecedented rate that blurs the line between ...