Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. A system or network that allows trade is called a market.
The product of mental labor — science — always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.
Karl Marx Addenda, "Relative and Absolute Surplus Value" in Economic Manuscripts (1861–63).
An EU project is using satellite data for lake management, and to support other European space endeavours. The project will receive, store and process data from Sentinel-2 and -3, and has devised the algorithms to fully automate the process.