Planetary Science Research Discoveries (PSRD) is an educational site that summarizes the latest research on meteorites, asteroids, planets, and other bodies within our solar system. The site is supported by the Cosmochemistry Program of NASA's Science Mission Directorate and by the Hawai'i Space Grant Consortium. In existence since 1996, PSRD maintains a searchable archive of its issues, as well as a helpful glossary. The articles are neither too technical nor too simplified and include links to additional information and resources to help readers further their understanding of a particular topic. You may also choose to subscribe to be notified via email when new issues are posted. It's an excellent way to learn about current scientific research from the scientists who are actually doing the research!
The most recent article of PSRD focuses on the formation of the Moon. Check it out!!