Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

Two of the worlds in the system might ... red stars rather than planets around stars like our sun,” Ian Crossfield, the lead author of the new study detailing the exoplanet finds in the ...

This hellish planet is infamous for two reasons: its deadly weather and its ... HD 189733 b sits closer to its own version of the sun, earning it the common astro-nickname of "hot Jupiter".

This planet has a mass 30% that of Earth's, and orbits its star every 3.15 days at a distance of 2.13 million miles (3.4 million kilometers/0.0229 AU). Breaking space news, the latest updates on ...

Some worlds orbit two suns — and some orbit no star at all. From boiling-hot gas giants to worlds with bizarre weather patterns, here are five of the weirdest exoplanets scientists have discovered so ...