Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an ice covered rogue planet. New predictions suggest an upcoming NASA space telescope could spot over 400 Earth ...

The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are these planets really? To put it into perspective, we can run some ...

Astronomers Discover a Rogue Planet the Size of Saturn Drifting Through Our Galaxy ...

The three planetary candidates highlighted in this study are Kepler Object of Interest (KOI) 1422.02, which is 90 percent the size of Earth in a 20-day orbit; KOI-2626.01, 1.4 times the size of Earth ...

Just 40 light-years from Earth is a planetary system that has intrigued scientists since its discovery in 2016. While some of the planets in this system will be observed by the upcoming James Webb ...

Scientists have discovered over 4,000 exoplanets outside of our Solar System, according to NASA’s Exoplanet Archive. Some of these planets orbit multiple stars at the same time. Certain planets are so ...

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...