Large and small planets are born from very different circumstances, according to data from NASA’s now-retired space telescope ...

Large planets need metal-rich stars in order to form; small planets do not ... fuse to form bigger rocks until eventually they form a planet that can be about the size of Earth or, if the planetary ...

Using the now-retired Kepler space telescope, astronomers have discovered that larger planets grow up in more turbulent homes ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

Large planets need metal-rich stars in order to form; small planets do not ... eventually they form a planet that can be about the size of Earth or, if the planetary core is very large, up ...

Details such as how long it takes the planet to complete an orbit and how much light it blocks as it passes in front of the star offer clues to its size and orbit. Astronomers can make a few ...

Asteroids are rocky objects that orbit the Sun, just like planets do. There are millions of asteroids of very different shapes and sizes. Some are almost spheres, like planets, but most are ...

concentrated on understanding the intricate dynamics leading to the reduction in size of specific sub-Neptune planets. Christiansen's team suggested a compelling link between the cores of select ...

Narrator: As the solar system grew, four rocky planets: Mercury, Venus, Earth and Mars, were created closest to the Sun. Made of rocks and metals, they have solid surfaces and a central core of ...

Large planets need metal-rich stars in order to form; small planets do not ... eventually they form a planet that can be about the size of Earth or, if the planetary core is very large, up ...