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. From space earth is really fragile. To delete text in the middle of a sentence, click to place your text cursor immediately after the text you want to delete. Omissions? This reality meant that space exploration had to serve very broad interests, and it indeed has done so in a variety of ways. Its main purpose is to enter the space between words during typing. In 2004 a privately financed venture sent a piloted spacecraft, SpaceShipOne, to the lower edge of space for three brief suborbital flights. A second application involved remote observation of land and sea surfaces to gather imagery and other data of value in crop forecasting, resource management, environmental monitoring, and other applications. … Press and hold down Ctrl and press Backspace to delete one full word at a time, instead of deleting one character at a time. A complete list of all crewed spaceflights, with details on each mission’s accomplishments and crew, is available in the section Chronology of crewed spaceflights. Most space activities have been pursued because they serve some utilitarian purpose, whether increasing knowledge, adding to national power, or making a profit. Nevertheless, there remains a powerful underlying sense that it is important for humans … In some Internet browsers, you can also press the Backspace key to go back to the previous page. A stellar nursery in the Eagle Nebula (M16, NGC 6611). Updates? 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. All keyboards having a Backspace key only have one Backspace key. Until humans resume such journeys of exploration, robotic spacecraft will continue to serve in their stead to explore the solar system and probe the mysteries of the universe. Thus, when scientists sought government support for early space experiments, it was forthcoming. He repeated these claims after Yuri Gagarin’s orbital flight in 1961. On Apple computers, the Backspace key is called 'delete,' but performs the same function as the Backspace. What is the difference between the del and Backspace keys. If you need to delete text to the right of the cursor, press the Delete key. For example, click the mouse button at the end of "deleted" in the text box below and press the Backspace key to practice using the key. He was a member of the NASA Advisory Council... Erik Gregersen, astronomy and space exploration editor of. As centuries of speculative fiction in books and more recently in films make clear, “one small step for [a] man, one giant leap for mankind” was taken by the human spirit many times and in many ways before Neil Armstrong stamped humankind’s first footprint on the Moon. Other countries also viewed having a successful space program as an important indicator of national strength. 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. Dwight D. Eisenhower had decided not to compete for prestige with the Soviet Union in a space race, his successor, John F. Kennedy, had a different view. Below is an overview of a computer keyboard with the Backspace key highlighted in blue. 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. 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 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. The arrow pointing to the left helps you remember the direction of the Backspace key. In addition to providing security benefits, satellites offered military forces the potential for improved communications, weather observation, navigation, timing, and position location. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. 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. A related, but economically much smaller, commercial space business is the provision of launches for private and government satellites. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. It is large enough so that a thumb from either hand can use it easily. Although it was technically a much less challenging achievement than carrying humans into orbit, its success was seen as an important step toward opening up space to commercial travel and eventually to tourism. Intelligence-gathering satellites have been used to verify arms-control agreements, provide warnings of military threats, and identify targets during military operations, among other uses. This led to significant government funding for military space programs in the United States and the Soviet Union. 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. 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. As seen in the picture, the Backspace key always has an arrow that points to the left. This change came for two reasons. Although the advantages and disadvantages of stationing force-delivery weapons in space have been debated, as of the early 21st century, such weapons had not been deployed, nor had space-based antisatellite systems—that is, systems that can attack or interfere with orbiting satellites. It's always the largest and longest key on the keyboard. With a PC keyboard Backspace, when you press the Backspace key, it removes text to the left of the cursor.

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