Mappa is a library created by Cristóbal Valenzuela that allows maps to have overlays. This is useful for creating visual representations involving maps, whether its static or interactive. The library is compatible with different map formats, such as Google Maps, Mapbox, and Mapquest. The library contains methods such as creating/setting up the map, creating overlays, and converting latitudes and longitudes to pixels(and vice versa).

Animated Meteorite Landings shows the 5,000 largest registered meteorite landings across the world. It displays the meteorite’s s path and displays an animation of the meteorite crashing/exploding as it reaches its crash destination. The user can use their mouse to move the map around and zoom in and out.