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

"There really is something very different about how these giant planets form versus how small planets like Earth form." ...

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

How does a planet’s size influence its orbit around its parent star ... Large planets need metal-rich stars in order to form; small planets do not. Small planets have low eccentricities, and large ...

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 ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt ... "Since Gonggong ...

"Comparing the frequency of exoplanets of certain sizes around stars of different ages can tell us a lot about the processes that shape planet formation," Fernandes said. "If planets commonly form ...