Memoir, autobiography, biography. A memoir is a special kind of autobiography, usually involving a public portion of the authorâs life as it relates to a person, historic event, or thing. The text is about the personal knowledge and/or experiences of the author. literary agent discusses the contents of a quality memoir and how it differs from an autobiography or biography. Memoirs are perennially popular with many new books coming out each year. The bestseller, Night, by Elie Wiesel, is a memoir, not an autobiography or biography.
According to CelesTrak there are 2,691 inactive satellites in orbit. 1,490 satellites are active for a total of 4,181. [1] The UCS Satellite Database has an equivalent number. [2]
Now, there are nearly 500,000 objects circling over Earth in various orbits. These include debris, inactive and active satellites. The tiny Sputnik, which means satellite or fellow traveller in Russian, was the first artificial satellite to be launched into Earth's orbit on October 4, 1957, and it changed the course of human history.