U.S. space shuttle astronaut Michael Lopez-Alegria floating in space outside the Unity module of the International Space Station in October 2000, during an early stage of the station's assembly in Earth orbit. Achieving spaceflight enabled humans to begin to explore the solar system and the rest of the universe, to understand the many objects and phenomena that are better observed from a space perspective, and to use for human benefit the resources and attributes of the space environment. A related, but economically much smaller, commercial space business is the provision of launches for private and government satellites. In the early 21st century, entrepreneurs believed that there were several other areas of commercial potential in space, most notably privately funded space travel. The strong hold that space travel has always had on the imagination may well explain why professional astronauts and laypeople alike consent at their great peril, in the words of Tom Wolfe in The Right Stuff (1979), to sit “on top of an enormous Roman candle, such as a Redstone, Atlas, Titan or Saturn rocket, and wait for someone to light the fuse.” It perhaps also explains why space exploration has been a common and enduring theme in literature and art. The rubout key performed the same function as today's backspace key. Although the possibility of exploring space has long excited people in many walks of life, for most of the latter 20th century and into the early 21st century, only national governments could afford the very high costs of launching people and machines into space. Suggestions have been made that in the future other areas of space activity, including using resources found on the Moon and near-Earth asteroids and the capture of solar energy to provide electric power on Earth, could become successful businesses. More than 15 years after SpaceShipOne reached space, several firms were poised to carry out such suborbital flights. It is located in the top-right portion of the keyboard. Two U.S. Corona reconnaissance satellite images made a year apart—in mid-1961 (top) and mid-1962 (bottom)—revealing the construction of a new Soviet SS-7 Saddler (R-16) intercontinental ballistic missile site. The Backspace key really only has one function and that is to delete text to the left of the cursor. They illustrate a reality that has remained constant for a half century—as space capabilities are developed, they often can be used for both military and civilian purposes. TIROS 7 (Television and Infra-Red Observation Satellite 7), launched June 19, 1963. The U.S., the Soviet Union, Europe, and China also developed their own satellite-based global positioning systems, originally for military purposes, that could pinpoint a user’s exact location, help in navigating from one point to another, and provide very precise time signals. When the spacebar key is pressed, it creates an empty space known as a space character or whitespace that helps separate words and other characters in a sentence. Instead, the key is called "delete" on Apple keyboards. With a PC keyboard Backspace, when you press the Backspace key, it removes text to the left of the cursor. Learn about the various scientific efforts to study the planet Mars, including the Curiosity rover. In some Internet browsers, you can also press the Backspace key to go back to the previous page. Nevertheless, there remains a powerful underlying sense that it is important for humans to explore space for its own sake, “to see what is there.” Although the only voyages that humans have made away from the near vicinity of Earth—the Apollo flights to the Moon—were motivated by Cold War competition, there have been recurrent calls for humans to return to the Moon, travel to Mars, and visit other locations in the solar system and beyond. Press and hold down Ctrl and press Backspace to delete one full word at a time, instead of deleting one character at a time. Second, governments were willing to take on this responsibility because of the belief that fundamental research would produce new knowledge essential to the health, the security, and the quality of life of their citizens. On April 20, 1961, in the aftermath of the Gagarin flight, he asked his advisers to identify a “space program which promises dramatic results in which we could win.” The response came in a May 8, 1961, memorandum recommending that the United States commit to sending people to the Moon, because “dramatic achievements in space…symbolize the technological power and organizing capacity of a nation” and because the ensuing prestige would be “part of the battle along the fluid front of the cold war.” From 1961 until the collapse of the Soviet Union in 1991, competition between the United States and the Soviet Union was a major influence on the pace and content of their space programs. It is large enough so that a thumb from either hand can use it easily. These satellites quickly found numerous civilian uses in such areas as personal navigation, surveying and cartography, geology, air-traffic control, and the operation of information-transfer networks. He was a member of the NASA Advisory Council... Erik Gregersen, astronomy and space exploration editor of. In addition to providing security benefits, satellites offered military forces the potential for improved communications, weather observation, navigation, timing, and position location. Can you name the Viking who discovered Greenland? The Backspace key or Back space key is a keyboard key that deletes any character before the cursor's current position or the left. Nevertheless, there remains a powerful underlying sense that it is important for humans … This change came for two reasons. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Even before the first satellite was launched, U.S. leaders recognized that the ability to observe military activities around the world from space would be an asset to national security. However, most browsers today use the shortcut key Alt+Back arrow to go back to the previous page. The arrow pointing to the left helps you remember the direction of the Backspace key. A stellar nursery in the Eagle Nebula (M16, NGC 6611). Most space activities have been pursued because they serve some utilitarian purpose, whether increasing knowledge, adding to national power, or making a profit. Soviet leader Nikita Khrushchev in 1957 used the fact that his country had been first to launch a satellite as evidence of the technological power of the Soviet Union and of the superiority of communism. Articles from Britannica Encyclopedias for elementary and high school students. From Earth to outer-space, test your knowledge of human exploration and discovery in this quiz. The Space Force will act as a conduit for space-based intelligence and technology to reach the rest of the military, for instance by making sure that battlefield commanders have real-time access to satellite reconnaissance. Examples of such efforts include the development of the Curiosity Mars rover, the Cassini-Huygens mission to Saturn and its moons, and the development of major space-based astronomical observatories such as the Hubble Space Telescope.

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