Use this Realtime Modis Viewer to explore near real-time MODIS taken in the past week. Toggle between the true-color, 7-2-1, and 3-6-7 band combinations to see how different features of our landscape look from space.
To see how I created this tool in p5.js using Leaflet, explore the code in realtime-modis-viewer/sketch.js.
For more information on how to interpret different MODIS band combinations, check out the MODIS Worldview FAQ from the NASA EarthData Blog. This tool borrows some code from the NASA GIBS Web Examples repository, which I highly recommend you check out!