A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

An international team of astronomers has shown for the first time that it is possible to map exoplanets using a technique ...

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 ...

There’s something about comparing the sizes of unthinkably large objects that’s endlessly intriguing. Looking at a comparison of all the various sizes of stars in the universe, for example, makes for ...

(CNN) -- Astronomers have found an unusually large planet orbiting a small star, located about 280 light-years from Earth. The unexpected size of the newly discovered world, called TOI 5205b, has led ...

(CNN) -- In October 2018, astronomers discovered what they thought could be an exomoon, a moon outside our solar system. The exomoon, which is estimated to be the size of Neptune, was found in orbit ...