Researchers at the Harvard-Smithsonian Center for Astrophysics found that some exoplanets have similar interiors like the Earth. These planets contain a crust, mantle and a core just like Earth.
Scientists have used mathematical models in order to "look" into the interior of super-Earths and have found that they may contain compounds that are forbidden by the classical rules of chemistry.
Scientists have learned a bit more about moon rocks and why they're more depleted in volatile elements than those found on Earth.
In a recent study, researchers were able to detect the chemical elements needed to make stars, planets and people by examining the Virgo galaxy cluster. These elements were evenly distributed across millions of light years early in cosmic history.