The Next-Lab project provides free web-based resources supporting teachers in enhancing students' learning experiences. By including online laboratories, experiments otherwise difficult or impossible to perform are facilitated (e.g. crashing meteoroids into Earth). This article briefly presents the project and opportunities offered to teachers and their students, as well as the Go-Lab ecosystem supporting teaching and learning. The latter consists of the Go-Lab Sharing Platform, which offers resources such as online labs, scaffolding apps and complete online lessons, and the Go-Lab Authoring Platform, which enables teachers to adapt existing online lessons as well as to create their own lessons from scratch.