An international team of astronomers reports the discovery of two new exoplanets, a few times more massive than Earth, ...

An illustration showing a rough size comparison ... provides a new piece of the habitable zone picture, which will ultimately contribute to our characterization of the population of Earth-like planets ...

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

They found that volcanic gases lacked significant steam, indicating the planet's interior ... 1453 c is twice Earth’s size and may have a... Astronomers have revealed new evidence that there ...

"It's like trying to spot a fish by looking for ripples in a pond, rather than trying to see the fish itself." ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

The discovery of this new, farther-out super Earth is even more significant ... than Earth all the way to the size of Jupiter and beyond shows us that planets, and especially super-Earths, in ...