Description: Chart.js is an open-source JavaScript library that allows developers to easily create responsive, interactive data visualizations and charts using HTML5 Canvas. It supports 8 chart types including line, bar, radar, polar, pie, doughnut, scatter, and bubble charts.
Type: software
Pricing: Open Source
Description: Stellarium is an open-source planetarium software that shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It can be used to learn about astronomy and identify stars, constellations, planets and satellites.
Type: software
Pricing: Open Source