Many people hold Pluto close in their hearts and refuse to abandon the assertion that it is a planet, although science ...

This data book of scientific information is an essential guide for all STEM researchers, teachers and students. It comprises six sections on astronomy, meteorology, physics/chemistry, earth science, ...

Pluto, Makemake and Eris constitute 'plutoids' (Pluto-like objects in the Kuiper Belt, a girdle of icy objects beyond the orbit of Neptune). The fourth dwarf planet is Ceres, which inhabits the ...