An artist

Missing planets twice the size of Earth could indicate migrating worlds

Supercomputer simulations have provided an explanation as to why so many exoplanets are either super-Earths or mini-Neptunes, with few planets in between.

Exoplanets can come in a variety of sizes and masses. If you were to plot on a graph the number of planets of each size discovered by astronomers, you would find two peaks: one at 1.4 times Earthradius of , and another at 2.4 times the radius of the Earth. Between them is a trough or valley, about 1.8 times the radius of Earth, signifying the relative rarity of planets of this size.

#Missing #planets #size #Earth #migrating #worlds

Leave a Comment

Your email address will not be published. Required fields are marked *