This website is divided into two sections through two links on the main page. There is a section for everyone and a section for educators and developers.
The website also has an amazing Hubble gallery that has hundreds of great pictures, from the butterfly nebula to the carina nebula to the Hubble ultra deep field. There are also news updates of different missions and online exploration options that allow visitors to make discoveries through using space images.
The other section of the website has a large number of teaching tools, resources and astronomy basics that cover black holes, comets, electromagnetic spectrums, galaxies, gravities and telescopes!