1959 introductions

thumb|NASA astronaut [[Bruce McCandless II using a Manned Maneuvering Unit outside on shuttle mission STS-41-B in 1984.]] An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member of a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and space tourists. In the United States, it is a designated term used by three agencies:

arrival of a spacecraft on the surface of the Moon

A pacemaker, also known as an artificial cardiac pacemaker, is an implanted medical device that generates electrical pulses delivered by electrodes to one or more of the chambers of the heart. Each pulse causes the targeted chamber(s) to contract and pump blood, thus regulating the function of the electrical conduction system of the heart.

artificial satellite designed to monitor weather and climate

coat of arms

Billboard record sales chart

standardized test used for college admissions

simplified English in Voice of America

postal codes used in the United Kingdom

thumb thumb|Eurail Pass and Guide

indigenous semi-syllabic script, invented to write two Hmong languages spoken in Laos

1950s British turbofan aircraft engine

rose cultivar (1959)

type of roller coaster that is defined by having a track made of steel

Position in the United States Department of State