Planet Labs - Planetscope
Data Sources

Planet Labs Imagery: The Entire Earth, Everyday

Planet Labs (or simply Planet) started with one main idea: To capture Earth… Every day. And Planet achieved this by designing an ultra-compact, inexpensive one (CubeSAT) which they could manufacture in bulk.

Data Sources

How to Download USGS Topo Maps for Free

If you’re looking for topographic maps (contours, place names & hydrography) for the United States, the first place to look is the USGS topo maps series.