Prokaryotes do not have an organized nucleus. Their DNA is kind of floating around the cell. It's clumped up, but not inside of a nucleus. If you want to learn about cells with a nucleus, look for information on eukaryotes. And, once again, a prokaryote is a single cell or organisms that does NOT have organized nuclei.
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon.he first artificial satellite was Sputnik 1, launched by the Soviet Union on October 4, 1957, and initiating the Soviet Sputnik program, with Sergei Korolev as chief designer (there is a crater on the lunar far side which bears his name).
1. communications satellite-an artificial satellite that relays signals back to earth; moves in a geostationary orbit. communication equipment, communication system-facility consisting of the physical plants and equipment for disseminating information.here are two types: a. active communications satellite--A satellite that receives, regenerates, and retransmits signals between stations; b. passive communications satellite--A satellite which reflects communications signals between stations.