The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo program's goal of landing astronauts on the Moon by the end of the 1960s and returning them safely to Earth.

The Apollo Program was a series of space missions conducted by the United States' National Aeronautics and Space Administration (NASA) during the 1960s and 1970s.

The Wikipedia page for Ariane 5 provides a comprehensive overview of the European Space Agency's Ariane 5 rocket, which is used for launching satellites into space.

Falcon 9 is a two-stage reusable rocket designed and manufactured by SpaceX, a private aerospace company founded by Elon Musk.

Falcon Heavy is a reusable heavy-lift launch vehicle developed by SpaceX, an American aerospace manufacturer and space transportation company.

Noel Joseph Terence Montgomery Needham (9 December 1900 - 24 March 1995) was a British biochemist, historian of science and sinologist known for his scientific research and writing on the history of Chinese science and technology, initiating publication of the multivolume Science and Civilisation in China.

Konstantin Eduardovich Tsiolkovsky (Константи́н Эдуа́рдович Циолко́вский ||p=kənstɐnʲˈtʲin ɪdʊˈardəvʲɪtɕ tsɨɐlˈkofskʲɪj |a=Ru-Konstantin Tsiolkovsky.

The natural logarithm is a mathematical function that is the inverse of the exponential function.