As a matter of fact, there are several! FalconSat-3 is the one most people connect to in the USA. I think there might also be one aboard the ISS, but most peopl

As a matter of fact, there are several! FalconSat-3 is the one most people connect to in the USA. I think there might also be one aboard the ISS, but most people use the ISS for forwarding APRS packets. You need an amateur radio license to connect to these, but once you have one you can get into all sorts of other radio projects around the world too :) Edit: The downside, of course, is that you usually only have (at most) a 20-minute connection window before you lose line-of-sight, since these satellites are in LEO. https://www.amsat.org/falconsat-3/ https://www.amsat.org/falconsat-3/