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

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

A new study compares young and old exoplanets to uncover how worlds shrink, migrate and evolve over time — offering insights ...

The finding points toward two different pathways by which large and small planets form. "What we found is that right around ...

"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 ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

A new analysis examined the frequencies of planets of different sizes based on findings from NASA's Kepler spacecraft, correcting for both incompleteness and false positives. The results show that ...

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 ...

The world is 95% Earth's size and likely rocky. Astronomers previously discovered three planets in this system, called TOI 700 b, c, and d. Planet d also orbits in the habitable zone. But ...

By monitoring these dips, astronomers can infer the presence of a planet, its size and the length of its ... both close-in and farther-out planets at different stages in their lives.